Return Line Questions

[Ya Dude]

does the return pipe enter below water surface in sump.Could cause back pressure.

[m109r]

yes it is below the water surface by around 5 inchs

wouldn't back pressure cause it to flow less? from what I am seeing it flows to well and then sucks all the water out of the overflow box...

[golf nut]

The Dart might be a little too much pump for the return from the sump, what size are the overflow drains? try raising the drain so it isn't under the surface of the sump as the previous poster suggested,the drain sounds undersized and is siphoning.

[m109r]

the overflow drain is a single 1.5"

[Ya Dude]

cut it above the surface ,see what happens,if nothing oh well

[fkshiu]

What are you using as an overflow? Drilled? HOB? Are you using a Durso/Stockman or just a plain standpipe? Is it an AGA Megaflow?

[m109r]

good question, it looks like this:

[golf nut]

Raise the drain and reduce the otput of the Dart, once it gets quiet increase the pumps output slowly.

[m109r]

1" above the surface level?

man am I glad I put unions everywhere:



.....i am also planning on doing something with the rats nest....just not today

[m109r]

ok, so I raised the drain to just above the water and presto, drain valve 100% open, and I can get up to 40% on the return valve.

it is a little louder dropping into the sump but not bad

thanks to all