How to Stop Leakage of Plastic Water Tank?

Hi. I can help you by sharing the steps for a plastic water tank leakage solution. This is a work of expertise, so if you’ve never done any such work before, I recommend you get the job done through a professional plumber.

How to Repair Plastic Water Tank Leakage?

1. Start by checking that the plastic tank is cleaned from the inside and outside. If there is a scope for cleaning, use a disinfectant for doing so. 

2. We’ll now deal with the crack that is causing the leakage. Drill one hole at the top of the crack and the other at the bottom of the crack. The holes will prevent the crack from growing in size. 

3. Take a rotary tooltip and make a ½ inch cut parallel to the crack and keep space for the welding rod. 

4. Apply epoxy carefully according to the directions of the product manufacturer. Epoxy is used for covering cracks, so this will help by working as a sealant.

5. Grab the welding rod and make it into a point using a utility knife. Place the welding rod inside the welding gun.

6. Move the gun down across or down to the crack of the tank. The epoxy needs to be dried for a minimum of one hour. 

7. After the epoxy has dried up, sand it using fine grit sandpaper. Paint the surface of the tank and the cracked part to cover the repair marks.

This is how to fix leakage in plastic water tanks. I hope you now understand the process.

Hi Rashmi,

Leaking water tanks can be a big problem if you don’t know how to

stop leakage of plastic water tank correctly. If not done properly, the leakage can reoccur in a few days. I know this because I had been repairing my plastic water tank in the wrong way for a long time. It was just a few months back that I understood how to stop the leakage from the tanks for good.

Plastic water tanks, if not maintained regularly, tend to get cracks with time. They need to be cleaned regularly and should be covered to protect them from outside damages. Regular hygiene check of the plastic water tanks ensures the longevity of the tanks and also prevents frequent cracks and crevices. But there are other ways to understand how to stop water leakage from plastic water tank, from a professional perspective.

There are a few major ways in which professionals stop leakages from water tanks. These ways are easy and can be adopted by us with some easy to use tools at hand.

• Heating method:

  If the crack in the water tank is smaller in size, you can heat up a soldering iron and touch the hot iron on the top of the crevice on the plastic water tank and let the plastic around the crack melt through. As the crack melts, you can join the crack with the melted plastic and let it dry thoroughly. This will fix the crack and stop the leakage.

• Fibreglass method:

  In this method, you need to apply a layer of fibreglass over the crack and glue it with the help of resin. Keep applying more layers of fibreglass to fix the crack and make it sturdy enough to stop the leakage for a long time.

• Putty/Epoxy method:

  Putty is another very reliable method of how to stop plastic water tank leakage. It can be used to seal the cracks and prevent leakage.

These are some ways to understand

how to stop leakage of plastic water tank. I hope this helped you out.