A Story From the Field: The Little Shop Everyone Was Waiting For

Tom has run a pet food and supply shop out of a two-unit shophouse in Prawet for almost ten years. Out front, sacks of dog and cat food are stacked in neat towers. The middle aisles are packed with cat litter, treats, collars, leashes, toys and soft pet beds. Toward the back there is a small corner with a few aquariums and a row of bird cages that customers leave with him while they travel. Behind that is a stockroom crammed with cardboard cartons from floor to ceiling.

This year, water from a nearby canal rose overnight. Tom and his assistant managed to lift some of the sacks onto higher shelves, and they drove the aquariums and the birds to a relative's house on higher ground. But the water came up faster than anyone expected. Inside the shop it reached knee height and sat there for close to a week.

When the water finally went down, Tom rolled up the steel shutter and was hit by a wall of smell: soggy, fermenting kibble, river mud and that heavy, musty dampness that seems to soak into everything. The sacks on the lower shelves had swollen and burst. Kibble had spilled across the floor and turned into a sticky paste. Bentonite cat litter had set into hard slabs. Cartons in the stockroom had collapsed. The plush pet beds were dotted with black specks, and the back wall carried a brown tide line with patches of grey-green mold above it.

A few days later the messages started arriving on LINE. "Tom, are you open yet? We're nearly out of cat food at home." Others asked something more pointed: "Is the stock in your shop safe? My dog has a sensitive stomach." Tom understood immediately that this was the most important question of all, because his customers treat their animals like members of the family.

If you own a pet food shop, a pet store or a pet supply business in Prawet or a nearby district and you are facing something similar after the 2026 floods, this article is meant to help you put the work in the right order, from deciding what to throw away to disinfecting and ozone-treating the premises before you reopen.

Why a Pet Food Shop Needs Extra Care After a Flood

Flood-touched food must be thrown away, not dried and resold

Floodwater that has run across roads, through drains and out of canals is very often contaminated with sewage, bacteria such as E. coli, and household chemicals. Kibble, treats and wet food that touched floodwater, or whose packaging got soaked in the very damp air afterward, can carry germs and can grow molds, some of which produce toxins you cannot see or smell. The safest rule is simple: any food that came into contact with floodwater, or whose packaging is damaged, goes in the bin. Do not sun-dry it, do not sell it at a discount and do not give it away, however painful the loss feels.

Pets are sensitive to germs and to smells

Dogs and cats have noses many times more sensitive than ours, and they lick floors, lick their paws and carry toys around in their mouths. If a toy, a bowl or a bed sold in your shop spent days in floodwater, whatever was in that water can travel straight from your shelf to a customer's living room. Leptospirosis, the bacterial disease spread through rat urine that tends to rise during floods, can infect both people and dogs. A shop with sacks of food sitting near floor level is also exactly the kind of place rats like to visit.

The people working in the shop are at risk too

Owners and staff who wade through water, carry wet sacks and shovel mud face a higher risk of leptospirosis, diarrheal illness and fungal skin infections, especially if they have small cuts on their hands or feet. Anyone with allergies or asthma may find their symptoms flaring up after breathing mold spores in a damp stockroom. Rubber boots, rubber gloves and a mask should be part of every clean-up session.

The hidden business damage

A neighborhood pet shop lives on its regulars. If a loyal customer walks in and smells mustiness or spoiled food, or notices mold spots on a shelf, trust can disappear very quickly, and it may not come back. Staying closed for too long costs you sales, but rushing to reopen before the shop is properly dealt with can cost you a reputation you spent years building.

Step One: Sort the Stock. What Goes, What Can Be Cleaned

Before anyone talks about fogging or ozone, the single most important job is sorting your stock. Disinfecting a room does not make contaminated food safe to eat again, and no professional treatment can change that.

• Discard all of it: dry food, wet food, treats, bird seed, fish food, small-animal pellets, hay and supplements that touched floodwater, show water marks, have visible mold, or come in packaging that is swollen, torn or leaking. The same goes for cans that are dented, bulging or rusty.
• Discard all of it: wet cat litter, wood shavings, paper or wooden cage bedding, and any fabric beds, cushions or plush toys that sat in floodwater. These materials soak dirty water deep inside, where cleaning cannot reach.
• Can be washed and disinfected: stainless steel bowls, glazed ceramic bowls, metal cages, hard plastic litter trays, and hard plastic or rubber toys with no holes for water to get inside. Wash off the mud first, then disinfect according to the product directions and let everything dry completely.
• Decide item by item: stock that sat on high shelves and never touched the water, but spent days in a humid room. Check each package. If the seal is intact, the packaging is dry and there is no odor, it may be kept. If you are unsure, throw it out.

Photograph and list every item you discard. That record will help when you talk to suppliers, your insurer, or any agency offering support to flood-affected businesses. Bag food waste tightly and do not leave it piled outside the shop, where it will attract rats and flies.

Live animals in the shop: if you keep fish, birds, rabbits or other small animals, move them to a safe place before the heavy clean-up begins. They must stay outside the shop for the entire disinfection and ozone treatment and until ventilation is complete. If an animal seems unwell or is behaving oddly, talk to a veterinarian.

Why the Usual Fixes Fall Short in a Flooded Shop

Pouring bleach everywhere

Bleach can help clean hard surfaces, but its strong smell lingers in a shop that sells food for animals and can irritate the pets customers bring in with them. Bleach also does not reach behind shelving units, under the counter or up onto the ceiling, where mold spores settle. It should never be mixed with other cleaning products.

Running fans and leaving the door open

Ventilation is essential, but a fan only speeds up drying. It does not kill germs, and it can blow mold spores around the shop and onto the good stock sitting on the upper shelves.

Air fresheners and incense

Fragrance simply masks the musty smell for a while. The actual sources of odor, mold, bacteria and bits of spoiled food tucked into corners, are still there. Many pets dislike strong perfumes as well, so a heavily scented shop can even put animals on edge.

Painting over the mold

Fresh paint makes a wall look clean for a little while. If the wall is still damp inside and the mold is still alive, it will push the paint into bubbles and reappear as black spots within weeks. Let the wall dry, clean off the mold and disinfect before you repaint.

The Solution: CHEMGENE HLD4H Disinfection Fogging Plus Ozone Treatment by WHD

Once the stock has been sorted, the mud shoveled out and surfaces given a first wash, the next job is the germs, mold and odors still hiding in the air and in every crevice of the shop. The World Health Disinfection (WHD) team combines two methods that work hand in hand.

1. ULV disinfection fogging

The team uses CHEMGENE HLD4H disinfectant in an ultra-low-volume (ULV) fogger that turns the solution into a fine mist. The mist drifts behind shelving, under counters, into gaps along the walls and into the corners of the stockroom, the places a cloth cannot reach, helping reduce bacteria, viruses and fungi on surfaces throughout the shop. Learn more on the disinfection service page.

2. Ozone shock treatment

After fogging, the shop is closed up and a professional ozone generator runs at a controlled dose for a set time. Ozone is a gas, so it spreads through the whole room, helping destroy airborne mold spores and break down the odor molecules from mustiness, spoiled food and mud that have soaked into the ceiling and walls. See the ozone treatment service for details.

How the work runs in a pet shop

1. Site survey: the team checks how high the water reached, where mold is growing, the condition of the stockroom and restroom, and the ventilation. They also ask where live animals or moisture-sensitive goods are kept.
2. Clean-up advice: guidance on discarding stock, removing mud and washing surfaces before treatment, because disinfectant works best on clean surfaces.
3. Preparing the space: every animal, every potted plant and every person leaves the shop. Cash registers, computers and delicate electronics are covered or moved, and good stock is sealed in bags.
4. Disinfection fogging: CHEMGENE HLD4H mist is applied across the sales floor, aisles, shelving, stockroom, restroom and back area.
5. Ozone treatment: the shop is sealed and treated according to its size. No people, animals or plants may be inside at any point during this stage.
6. Ventilation: doors and windows are opened and fans run until the ozone has broken down. Only then do people go back in, and animals return only after ventilation is fully complete.
7. Re-check: the team checks for remaining odor and mold. If damp spots or smells linger, they recommend what to do next.

Safety note: during ozone treatment there must be no people, pets, fish, birds, small animals or plants in the space. Aquariums leave the shop together with their fish. Ventilate thoroughly before anyone goes back in. Sensitive electronics and delicate rubber items are covered or removed so the treatment can be carried out safely at a controlled dose.

10 Reasons Prawet Pet Shops Call WHD Before Reopening

1. Fewer flood germs on floors, shelves and counters thanks to the disinfection fogging service.
2. Reaches behind the shelving, where food crumbs and moisture build up and wiping by hand never quite gets everything.
3. Fewer airborne mold spores through ozone treatment before new stock arrives.
4. Removes musty and spoiled-food odors at the source rather than covering them up.
5. Protects your next delivery from spores still hanging around in the stockroom.
6. Quality disinfectant: CHEMGENE HLD4H, the product WHD uses in its service work.
7. A team that plans around your shop, including moving animals, covering equipment and ventilating properly.
8. Customer confidence: you can explain exactly how the shop was sorted and disinfected.
9. Time saved, so you can focus on suppliers and restocking instead of scrubbing every corner yourself.
10. Easy ongoing care with the CHEMGENE HLD4H spray for counters and shelves, plus the mosquito spraying service around the shop when mosquitoes surge after the water recedes.

Before and After the Shop Recovery

What a Shop Owner Might Tell You (Example Scenario)

"At first I planned to dry out the sacks that only got wet around the edges and sell them cheap. When the team explained that you can't see what's in floodwater, I decided to throw the whole lot away. It hurt, but I sleep better. After the fogging and the ozone, the smell in the shop was much lighter. On reopening day one of my regulars walked in and said the shop felt like itself again, so I felt comfortable telling everyone exactly what we'd done."

— Tom, pet food shop owner, Prawet (a representative scenario based on field work)

Setting Up the Shop to Cope Better Next Time

• Store food sacks on plastic pallets or steel racks raised off the floor, never pushed flat against a wall. Leave a gap so air can move.
• Keep the most vulnerable stock, such as food and cat litter, on upper shelves, and washable goods like metal cages and stainless bowls lower down.
• Switch from cardboard cartons to lidded plastic boxes in the stockroom and label each with the date it arrived.
• Prepare an evacuation plan for live animals in advance, with a list of who is boarding which pet and where they can go.
• Place rat traps safely where customers' pets cannot reach them, and remove food waste every day.
• Put a humidity meter in the stockroom. If humidity stays high, run a dehumidifier or an exhaust fan.

A Practical Reopening Plan, Phase by Phase

Every shop is different, but most pet shops in Prawet follow a similar path from the day the water leaves to the day the shutter goes up again. Thinking in phases helps you avoid the two classic mistakes: reopening too early, or spending money on treatment before the basics are done.

Phase 1: Safety and documentation

Before you touch anything, make sure the electricity has been checked by a qualified electrician, especially sockets and fridges near floor level. Photograph every aisle, the stockroom and the water line on the walls. Those photos are often the first thing a supplier or insurer will ask for.

Phase 2: Strip out and sort

Remove all flood-touched food, litter, bedding and fabric goods. Pull out any wet cardboard, soaked particle-board shelving and damp ceiling panels. Shovel and wash away mud, then let the floor and walls dry with doors open and fans running.

Phase 3: Professional treatment

Once the shop is empty of animals, plants and people and the surfaces are clean, WHD carries out disinfection fogging followed by ozone treatment and thorough ventilation, then re-checks the space.

Phase 4: Restock and reopen

Bring in fresh stock from your suppliers onto raised racks, return live animals only after ventilation is complete, and wipe counters and shelves daily for the first few weeks. Keep an eye on corners and the stockroom for any musty smell or new spots, which are early signs that dampness is still present.

Talking to customers honestly

Pet owners appreciate transparency. A short post on your LINE group or a simple notice on the door explaining that all flood-touched food was thrown away, that the shop was cleaned, disinfected and ozone-treated, and that new stock has arrived from suppliers, goes a long way, and it answers the question many customers are too polite to ask out loud. You do not need to exaggerate or make promises; simply telling people what you did is usually enough to bring your regulars back through the door.

Frequently Asked Questions

1. The sack only got wet on the outside. Can I still sell the food?

We do not recommend it. Any food that touched floodwater, or whose packaging is damaged, should be discarded, because germs and moisture can get inside where you cannot see them. Disinfecting or ozone-treating the shop does not make contaminated food safe again.

2. Can the fish or birds stay in the shop during the ozone treatment?

No. Every animal, including aquariums with their fish, and every plant must leave the shop before fogging and ozone treatment begin. They come back only after ventilation is fully complete.

3. How long will I need to stay closed?

It depends on the size of the shop, the extent of the damage and how quickly the building dries. The fogging and ozone work itself usually does not take long, but sorting stock, removing mud and waiting for walls to dry may take several days. The team will give you an estimate after the site survey.

4. Can flooded pet toys and beds be ozone-treated and sold?

Plush toys, cushions and beds that sat in floodwater should be thrown away, because they hold dirty water deep inside. Hard plastic or rubber toys with no holes may be washed and disinfected, but if you have any doubt, discard them for the sake of your customers' pets.

5. Will the mold never come back after ozone treatment?

Ozone helps reduce mold spores and odors, but if walls or floors stay damp, mold can return. Keeping the shop dry and well ventilated, and controlling humidity in the stockroom, is just as important as the treatment.

6. Which areas do you cover?

WHD serves Prawet, Suan Luang, Bang Na, Lat Krabang and other parts of Bangkok and the surrounding provinces. Call or message us on LINE to check availability.

Ready to Welcome Customers and Their Pets Back

Talk to the WHD team about disinfection fogging and ozone treatment for your pet food and supply shop in Prawet and nearby districts.

See the Disinfection Service – Click Here

Book Ozone Treatment – Click Here

Call 065-556-6294 · LINE @whd268 · Email worldhealthdisinfection@gmail.com

Related Links

• Ozone treatment for odors and chemical residue
• Residential ozone disinfection
• CHEMGENE HLD4H disinfectant spray
• All articles

Health reference: World Health Organization (WHO): Floods · Department of Disease Control, Thailand