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  1. #1
    Newbie mark45y's Avatar
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    Please help me understand my pump and water tank

    Right side tank water main is to the right under dirt. Picture from behind the tank


    In and out pipes on left side of tank and pump. Right side of pump and tank.
    MITSUBISHI EP-255Q5 Pump on Pump off

    1000 Liter Wave tank. . .

    I have a switch to turn the pump on and off.

    Do I have the correct on and off settings for the pipes? What happens to the water in the tank if I just leave it sit there? I think I need a sediment filter installed before the inlet in tank? The pump turns on when the water is turned on and I think this is the way it is supposed to operate.
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  2. #2
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    At a guess, I'd say the set-up is you have mains water coming directly into the house and also feeding the tank. If mains supply is ever cut off (which concept includes low pressure upstairs), the pump takes over and draws from the tank.

    Just a guess.

  3. #3
    Custom Title Changer
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    Quote Originally Posted by mark45y View Post
    Please help me understand my pump and water tank
    What don't you understand? If you've piped up the pump and tank like the diagram, you're golden.

    If you want to install a filter, I'd do it on the downstream side of the pump where the last flow arrow is shown on the piping diagram.

  4. #4
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    Quote Originally Posted by CSFFan View Post
    I'd do it on the downstream side of the pump where the last flow arrow is shown on the piping diagram.
    Or upstream, where the first flow arrow is. Prevent silt in the tank.
    Quote Originally Posted by mark45y View Post
    I have a switch to turn the pump on and off.
    Leave it on. I think it's passive and the pump will only fire up when called upon to do so by low pressure "downstream".

  5. #5
    Newbie mark45y's Avatar
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    1. If I turn off the water at the main and turn the water on from the tank and turn on the pump it pulls directly from the tank. 1000 liters lasts me a long time. The pump turns on only when a faucet is turned on but it turns on every time any faucet or toilet or shower is started. My wife complains the pressure is too much in the bum gun and blows her off the stool. I find it fine.

  6. #6
    Newbie mark45y's Avatar
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    I thought the filter should go in the line into the tank in the third photo down from the top. to prevent sediment from getting into the tank. How long will the water be good just sitting there in the tank?
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  7. #7
    Thailand Expat david44's Avatar
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    A filter in the bumgun may help that issue, rubber technology often helps distaff issues.

    Fortunately over the years my squaws have more "ballast" since eating regularly every 2 hours so that issue is self seating .

    There are plenty of pump jockeys here to give you technical advice.

    Good luck
    How much deeper would oceans be without sponges

  8. #8
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    Thailand Expat lom's Avatar
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    It would be much easier to understand the piping if you remove those ferkin flower pots before taking the photos.

  9. #9
    Newbie mark45y's Avatar
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    I only put the pots there to keep the dog from digging up the pipes. The dog wanted to help in the construction or was chasing a snake or lizard or some small animal. Sorry about the pots it was the only way to keep the dog out of the area.

  10. #10
    Thailand Expat david44's Avatar
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    We have a special device where I cone from , a shackled rope, rover size, I'll see if I can hound down a lead for you.

    As for the good vibrations

    https://www.gouldspumps.com/ittgp/me...s.pdf?ext=.pdf.

    I identified the rumble in our system Por having a dump

  11. #11
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    I think your inlet/outlet lines to the tank should be reversed IMO.

    The water from the street should go into the bottom port with the water to the house coming off the top. That way if you do have a sediment build up at the bottom of the tank, you're taking the water from the highest point in the tank.
    "I was a good student. I comprehend very well, OK, better than I think almost anybody," - President Trump comparing his legal knowledge to a Federal judge.

  12. #12
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    Here is a sketch.
    If you get the water from village system, forget the well and the pump at the left side, the water comes directly into the plastic tank on the top, the highest level sut off by a swimmer ball valve (usually included at the plastic tank).

    The plastic tank is usually with 2 bottom outlets. The lowest one is for occasional drain, for the pump intake is the other outlet some 10 cm higher that does not necessarily take the dirt collected at the bottom.

    If you trust that the water comes really clean enough you can forget the sand filter.


  13. #13
    Newbie mark45y's Avatar
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    The inlet is the top one of two. I think that's what the picture says.
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  14. #14
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    Quote Originally Posted by CSFFan View Post
    I think your inlet/outlet lines to the tank should be reversed IMO.

    The water from the street should go into the bottom port with the water to the house coming off the top. That way if you do have a sediment build up at the bottom of the tank, you're taking the water from the highest point in the tank.
    I have a very similar tank, i believe the inlet from the mains is correct as once inside the tank there is a 90 deg elbow + extension pipe, water then fills from the top of the tank, (edit, see he has just posted diagram of tank showing same #4) if it was filling from the bottom it would have to overcome hydrostatic psi.
    there must be a float valve installed for when tank is full.
    I would put a filter ~ 30 micron on the inlet before water goes into the tank, this prevents sediment build up and wear on the pump.

  15. #15
    Newbie mark45y's Avatar
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    Water is from the city the only time I'm worried about dirt is when repairs are done which are about 4 or 5 times a year and the water is shut off for a day or so.

  16. #16
    Member KiCanCummins's Avatar
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    Helping you undestand your pump & tank

    Mark54y,

    In your 1st post, picture 1, the loop from the city water over to the house feed is showing a ball shut-off valve.
    Go look at the last diagram in your 2st post, this is where the check valve/one way valve should be, so that when the pump is on it wont back feed the city water. The ball valve you take out should go into the inlet line to the tank (if you have to do any maintenance on the tank you can just shut the line off) as per diagram.

    This way all you need to do to switch between the city supply and tank is the turn the pump on or off, this also keeps the tank full. You wont need to turn the ball valves on or off, just leave them all open.

    As for the bum gun I am sure you can get pressure reducing valve to lessen the impact.

    The lines in & out of the tank are correct as per your diagram in post 13, the easy way to see this is to remove the top cap & with a flashlight (Torch for our English friends) and one will see the 90 degree elbow & pipe on the inside with the ball shut oof valve at the top (just like in the toilet tank).

    The only other thing I did was put a T fitting between the tank & the pump with a ball valve that is open ended to be able to flush and or drain the tank when necessary.

    KCC
    Moved back to Kanada

  17. #17
    Newbie mark45y's Avatar
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    Quote Originally Posted by KiCanCummins View Post
    Mark54y,

    In your 1st post, picture 1, the loop from the city water over to the house feed is showing a ball shut-off valve.
    Go look at the last diagram in your 2st post, this is where the check valve/one way valve should be, so that when the pump is on it wont back feed the city water. The ball valve you take out should go into the inlet line to the tank (if you have to do any maintenance on the tank you can just shut the line off) as per diagram.

    This way all you need to do to switch between the city supply and tank is the turn the pump on or off, this also keeps the tank full. You won’t need to turn the ball valves on or off, just leave them all open.

    As for the bum gun I am sure you can get pressure reducing valve to lessen the impact.

    The lines in & out of the tank are correct as per your diagram in post 13, the easy way to see this is to remove the top cap & with a flashlight (Torch for our English friends) and one will see the 90 degree elbow & pipe on the inside with the ball shut oof valve at the top (just like in the toilet tank).

    The only other thing I did was put a “T” fitting between the tank & the pump with a ball valve that is open ended to be able to flush and or drain the tank when necessary.

    KCC
    I am a little confused. Are you suggesting installing another valve? Or open my existing valve?

    Here open or add or here?
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  18. #18
    Member KiCanCummins's Avatar
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    Quote Originally Posted by mark45y View Post
    I am a little confused. Are you suggesting installing another valve? Or open my existing valve?

    Here open or add or here?
    I am suggesting you replace the ball valve that is open in the first picture of your reply and install a check/one way valve in its place. This is to be placed so that the water can only flow from the city connection straight to the house. Then take the removed ball valve and place it before the tank as an extra shut-off valve incase you have to remove the tank at some time. That way you will be as per the diagram in the in your first post.

    This way all you need to do to switch from the tank to city water pressure is turn off the electrical supply to the pump, just leave all the ball valves OPEN.

    I hope this is clear for you now.

    KCC

  19. #19
    Newbie mark45y's Avatar
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    Right side of tank Maybe this makes it easier to see.
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  20. #20
    Newbie mark45y's Avatar
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    Quote Originally Posted by KiCanCummins View Post
    I am suggesting you replace the ball valve that is open in the first picture of your reply and install a check/one way valve in its place. This is to be placed so that the water can only flow from the city connection straight to the house. Then take the removed ball valve and place it before the tank as an extra shut-off valve incase you have to remove the tank at some time. That way you will be as per the diagram in the in your first post.

    This way all you need to do to switch from the tank to city water pressure is turn off the electrical supply to the pump, just leave all the ball valves OPEN.

    I hope this is clear for you now.

    KCC

    I think you mean something like this.
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  21. #21
    Sukhumvet
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    Quote Originally Posted by mark45y View Post
    My wife complains the pressure is too much in the bum gun and blows her off the stool. I find it fine.
    Have a separate ball valve on the bum gun and turn it down a bit or find a bum gun with a very soothing spray head.

  22. #22
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    Quote Originally Posted by mark45y View Post
    Water is from the city the only time I'm worried about dirt is when repairs are done which are about 4 or 5 times a year and the water is shut off for a day or so.
    There is always a sediment whilst the water residing in the tank.

    I would put a filter ~ 30 micron on the inlet before water goes into the tank, this prevents sediment build up and wear on the pump.
    I guess that such a fine filter will get stuck by the water impurity, will not let the water properly in. Such a fine impurity - if any - would not make any harm to the pump.

    Anyway, it's a good precaution to dissolve (once a week or so) a bit of chlorine in the tank avoiding a growth of bad bacterias whilst the water is without movement. Then, the chlorine will discover also some chemical impurity - iron and other metals - there is always some - the residues will sediment at the bottom. A sand filter (back-washable) after the pump makes always a good service. Once after some time you backwash it, you will be surprised what the filter has held back.

  23. #23
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    Quote Originally Posted by mark45y View Post
    1 My wife complains the pressure is too much in the bum gun and blows her off the stool. I find it fine.
    Looks like TD's techs have you sorted. Re this particular problem, a larger wife might fix it.

  24. #24
    Member KiCanCummins's Avatar
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    yes just make sure the arrow is pointing in the direction to the house not the other way.

    KCC

  25. #25
    Days Work Done! Norton's Avatar
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    Your setup more complicated than mine. Consider simplifying.
    Main to filter, filter to tank (float valve to shut off main when full), tank to pump, pump to house. Although I have a valve to get main directly to house, all house water comes from tank to house.

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