Water Tank : Controlled Overload

About: Just an ordinary person who loves #thinking and #tinkering

Do you leave your running water a lot? Do you flood your bathroom most of the time? We never wait by the tank when we are filling in the water. Then we do something else, and we always get back late to check on it. I have a wash basin counter next to my water tank. The problem is when the tank is overloaded, the water will flood the basin counter. The disaster occurs when I leave my electric shaver or my cell phones on the counter. Arrghhh....

Lately I realized that my grandfather had his way to overcome this kind of problem. Then I write this instructable representing him ;)

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Step 1: Tools and Materials

What you need is simply a drill with a set of bits. A PVC pipe at the length of your tank's wall thickness. Some wall putty or white cement.

Step 2: The Design

Drill a hole on your water tank's wall, one inch from the top. Locate the position where you want the water spill out. It is better far from the faucet to avoid wavy water from faucet drop point. But that is the only position best in my case, the corner, so I can put another bucket below the hole to save some water for cleaning purpose. The size of the pipe should be equal or slightly larger than the faucet size. If your pipe is smaller, then the water level will still rise slowly because the volume of water filling in is larger than the volume of water goes out. Half inch pipe is good. Not too big and it match most faucets used at home. After the pipe goes in, apply the wall putty or white cements around the pipe and let it dry.

I need some time to convince my wife. I have not yet granted permission to drill our shiny ceramic (>.<) Well, actually she is tired wiping the flooded basin counter, but she is too worried that I will mess up the ceramics :P

There is my grandfather's 50-year-old water tank with that overloaded water control hole. There was a mini swimming pool in front of that tank, so the overloaded water would fill the swimming pool. No wasting water at all. Sadly, we had to remove the swimming pool and I can't publish the photos of it full with naked kids in it :P

Pro : You can control where the exceeding water spill out.

Con : It will leave water marks below the hole if you don't wipe it dry frequently.

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    8 Discussions


    3 years ago

    Now someone needs to write an instructable on how to convince our wives about our projects!

    3 replies

    Reply 2 years ago

    Well, here's an opinion from Brazil. Wives tend to frown on "gambiarras". That's the Portuguese word for poorly thought out and even more poorly executed "work arounds". We got plenty of those around these parts. This idea is clearly one - drill a hole and place a bucket? When, not if, the water overflows the bucket where does it go? Is there a drain on the floor? What else will get wet? If it was an idea to create a way for the overflow water to reach the exit pipe in a well finished manner, like most sinks have, I'm sure the wife would go for it.


    Reply 2 years ago

    Well, all that came to my thinking were "dry counter top" and "save a bucket of water". I don't need any bucket there anyway, but a bucket is always in my bathroom, so why not put it there and save some water? ^^ The floor is getting wet anyway, nothing to worry about.

    But then ... I learn to do my best to remember stopping the water rather than waiting for my permission granted :D
    That will keep the counter top dry and also no wasting water ^_^


    Reply 3 years ago

    Hahaha.. yes I need one... or a volunteer bathroom for me to drill to convince my wife :P


    3 years ago

    Stupid American here... I am guessing that is NOT a bathtub... And without an insulated lid, that it isn't a homemade hot water tank...

    If I had to guess, you have a wind/solar powered well, and that is your in-house storage tank? (small electric pump in bottom, to provide pressurized water to the rest of the house?)

    If it is JUST for storing water, couldn't you use a float valve to shut the water off for you? (One in every non-commercial toilet here, at around $10 a piece). I would think the automatic shut off would pay for itself.

    1 reply

    Reply 3 years ago

    I am Indonesian, chinese ethnic ^^
    You can find in almost every house in Indonesia, it is a small water reservoir inside bathroom. Only few new homes adopted the new dry bathroom with separate shower area. Not only we use it for bathing or when there is blackout and the pump is not working, but we use to flush our butts after poop. A kind of tradition, but it makes us feel cleaner than only wipe with tissue paper. Now there are toilets with built in butt flusher ^^

    The bathroom reservoir is usually not too big. A float valve usually bigger than a tennis ball with at least one foot length of stick often block us from scooping the water.

    Well.. just a tradition having a small water tank in bathroom as kids love to use it as bathtub :D