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  1. #1
    Thailand Expat havnfun's Avatar
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    Water Tank Checkvalves.

    I came upon an item a few months ago by watching a video bloggers house build on Youtube here in Thailand. At our place the old way to fill the water tank was to run a groundwater pump until the water tank was full then turn it off, this was wastefull and annoying if you ever forgot to fill the tank.
    Then we got metered water, is a lot cleaner and less minerally. So I decided to connect it to the tank and then got one of these,

    to stop the need to turn a valve everyday.
    It lasted about 9 months and letting water overflow, so pulled it out and reversed the rubber in the valve, and lasted about another year, is pissing water again. It is a pain to remove because of how the pipeing here is all glued pvc, and the location inside the tank means i have to cut the pipe for removal.
    And you can't buy new rubbers, everywhere i went said No, you have to buy a new unit. I asked about this small valve and only one shop new about it but did not know where to get it,
    Then finally i found it in Global House, comes in 3 sizes, 1/2, 3/4 and 1 inch. easy to screw off when installed inside the tank and easy to pull apart to clean. And made in Thailand.

    Water Tank Checkvalves.-20211030_195153_001-jpg



    I will update whenever it fails or if it becomes useless, but here is hoping.

  2. #2
    Thailand Expat
    malmomike77's Avatar
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    So you are saying that the rubber part of the ball valve perished in under a year even with town supply?

  3. #3
    Thailand Expat havnfun's Avatar
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    Quote Originally Posted by malmomike77 View Post
    So you are saying that the rubber part of the ball valve perished in under a year even with town supply?
    Yep, although the term "town water" means something different where I live, its really just filtered/treated ground water.

  4. #4
    Thailand Expat
    malmomike77's Avatar
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    be interesting to check the Ph

  5. #5
    Excommunicated baldrick's Avatar
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    Or learn the skill to make a simple rubber seat

  6. #6
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    Buckaroo Banzai's Avatar
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    it is not a check valve. a check valve allows flow in one direction but not the other. It is called a water level float valve,
    I have mine for over five years without a problem, in fact today was the first time I looked at it , after reading this OP.
    and I am sure it is not the most expensive available since the builder installed it.
    Water Tank Checkvalves.-float-valve-jpg

    The new one you got , looks like it would be a better one since the whole assembly is self contained. but I am sure it works in the same way the ball float ones do,
    Thanks for starting this thread, I had not really thought about that until now.
    The sooner you fall behind, the more time you have to catch up.

  7. #7
    Thailand Expat havnfun's Avatar
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    I fitted the new valve a week ago, is working fine so far, one thing I will say is very important, make sure you use threaded connectors so you can turn the valve inside the tank, it needs to be level and oriented correctly or it just won't let any water in, (ask me how I know), the stainless tanks we have don't have a 90% input hole.

  8. #8
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    When we rented in Chiang Mai, our house had a storage tank from municipal water. It was a breeding ground for mosquitos and we also saw a lot of micro shrimp living in there. Not too keen on any kind of storage tank after seeing all that action in it. Take a flashlight to it at night.... might be an eye-opener.
    You Make Your Own Luck

  9. #9
    last farang standing
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    You can put a capful of domestic (not power) kerosene in the top to stop mossies breeding. You should use 5ml (one teaspoon) per kilolitre up to 15ml for a 10,000 litre (10kl) tank. You will need to add again occasionally as the kerosene eventually evaporates, or you can also use liquid paraffin at double the kerosene dose or you can use cinamon oil at about the same dose. Some use cooking oils but they can possibly go rancid. The thin layer is enough to prevent larvae from breathing through the surface and they will die. Otherwise you will need to use fine mesh to cover entry points.

    This one on water quality may also help.
    https://www.health.nsw.gov.au/enviro...ater_tanks.pdf

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