Water Powered Back Up Sump Pump - Basepump Installation Video

[lenrapp]

Visit our web site and click on the reviews. We updated the article to include more information on the install of the discharge pipe. Hope this helps.

[lenrapp]

Actually, to clear up the confusion, the models with the AVB must discharge downhill and away from the Basepump and open to atmosphere on the exterior. Even when the discharge goes into a larger underground drain pipe, the connection between the smaller pipe from Basepump to the larger pipe in the ground should not be a sealed connection, but have an air gap, as any sump pump discharge should have, including the main electric one.

[lenrapp]

@lenrapp The reason for the downhill run has nothing to do with whether the pipe is flexible or rigid. It is about the remaining water in the discharge pipe after the pump shuts off. If it slopes back toward the pump, that water will flow back to the Basepump by gravity and spill out of the AVB valve onto the floor. Instead, you want that remaining water to flow outside by gravity.

[lenrapp]

It's only a problem if the water spills back into the house when you run the pump and it turns off. If there is no spill, there is no problem. If I remember correctly, the pipe from the pump went approximately straight out and then down to the drain. This should be fine unless you experience a spill. Let me know after you run it. Check the connection where the smaller pipe meets the larger one in the ground. It should be loosely fitted there, not glued and sealed.

[lenrapp]

Here are the answers from the Base Company to this question...hope this helps. I will check my installation to be sure we didn't glue the discharge pipe to the main and if so will make the correction so the connection is not a glued one. Hope this helps others in their installation.

[MrJspro]

If you go to there web site on any a.v.b models the discharge tube is a flexible so there will be no chance that sump water can back flow to your drinking water, imange what pollutants come from that water, any grass fertilizer would filter down to the basin, better to be safe

[lenrapp]

We read the instructions and saw that is said we should install 6" above downstream outlets and was told we could install it this way. I will double check with Base and let you know. We went over the instructions very carefully before the video was made to make sure it was correct.

[MrJspro]

It APPEARS THAT THIS PLUMBER DIDN'T READ THE INSTRUCTIONS THAT THE DISCHARGE HOSE IS SUPPOSE TO SLOPE DOWNWARD AWAY FROM THE PUMP FOR THE A.V.B MODELS?

[lenrapp]

@MrJspro Now I recall why we did ours this way. There was no way for the water to back up since our discharge is a closed system and the water goes out of the house down the discharge pipe you see in our video and out the 4" pipe to our towns system. In an open system where the water drains to the outside of the home and onto the ground, that danger exists. This is why Base told us to do ours this way. Glad you pointed this out to help others understand.