Where to place the check valve? Attached to the sump pump, or above the bsmt floor?

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Parasound

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I’m replacing our 20 year old 1/3 HP ACE branded sump pump.
The old check valve was screwed directly into the old sump pump. I read that some recommend the check valve should be higher, just above the basement floor level? (maybe so the pump doesn’t have to work as much to initially push as much water?)

-I picked up a Wayne 1/3 HP pump, 3750 GPH, coated steel, thermoplastic bottom at ACE. (it looks almost identical to our old 1/3 HP ACE branded sump pump).
-Our sump pump rarely runs. The only time it runs is when we get a gusher of rain, maybe over 3-6” of rain at one time?
-Our sump hole is about 25” x 18”, and it is about 14” from the outside basement wall.
-From the basement floor, it is 8’ up to the house sill where the 1.5” pipe goes outside.
-Outside there is about 30’ of sump hose to the back yard.

  1. Where should the check valve be installed?
  2. If the check valve is screwed directly into the sump pump do you need a weep hole, and where?
  3. If the check valve is placed above the sump hole slightly above the basement floor do you need a weep hole, and where?
  4. Does the Wayne 1/3 HP coated steel pump require the discharge pipe to have a weep hole? I thought I read on Wayne’s website that it is not required, but I cannot find that now.
  5. Would the Wayne 1/3 HP unit be an acceptable unit for our purpose here?


If I were to use a check valve that screws into the base of the sump pump is it possible to utilize a weep hole?
My guess is no, because it seems to me that, in this case for a weep hole, you would have to drill a hole into the body of the Check valve itself because there would be no PVC pipe below it to drill through since the check valve would be directly screwed into the pump?
Maybe with a check valve that is so low in the discharge pipe chain when it is screwed into the base of a sump pump there would be less or no chance of air lock?
That is the type of check valve that was installed in our system for years and I don't think it had a weep hole?
If the Wayne pump needs a weep hole, and if I use the type of check valve that screws into the base of the sump pump, and you cannot drill the check valve then would you have to drill a hole into the base of the sump pump?
 
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Fitter30

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Above the pit. All the sump pumps I've seen have a hole in the pipe between pump and check i the pit Instructions that come with pump spec what size hole.
Drill at a slight angle upwards so it squirts down.
 

Parasound

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Fitter30

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Did u read the manual that came with the pump? Did the manual what a hole in the pipe between pump and check. Would u like to pull the piping to remove the pump with the pit full? Down on ur hands and knees arms in the water. I want to make things easier on me. Check above pull a clamp or a union then pull the pump out.
 
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Jeff H Young

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Never mind the 20 year old install just do it right this time . check goes above the pit with 1/8 inch hole inside I just follow the spec I havent done a pump in a few years but If it says 6 inches above put hole there if it says 11 pit it at 11. if your spec says screw check valve to the pump Ill be Damed
 
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