Standpipe Help?

[Patriot76]

Well I final won the battle against the leaky bulkheads, now on the the next issue. I have two overflows draining into my sump. i have DIY standpipes in each overflow. the PVC pipe that drains the water into the sump are below the water line in the sump. one overflow is making a sucking sound. the water line in the overflow is right at the lip of the PVC elbow (facing downward). The other overflow has a flushing effect. the water level of the overflow rises, then drains in loud flushing sound. Any advice?

 

[JohnS_323]

Somewhere around here is a link to DIY durso's which should help with the sound. I'll see if I can find it (if someone else doesn't beat me to it!).

 

[panmanmatt]

http://www.dursostandpipes.com/BuildYourOwn/tabid/54/Default.aspx

 

[Patriot76]

i already have that page bookmarked. there is a FAQ page but the link to answer is not working-

http://www.dursostandpipes.com/FAQ/tabid/55/Default.aspx

Q1. Flushing Effect- Water Level Goes Up And Down!

 

[Patriot76]

i drilled bigger holes in the end cap on the top of the standpipes. i also drilled a hole on the PVC pipe just above the waterline in the sump. problem solved.