Water hammer from my check valve

[ReefJunkie]

Originally Posted by mike31154

From what I've seen on these boards most people plumb without a check valve since they're prone to failure. They plan their sump configuration to handle the extra water from the overflow and piping when the pump is shut off or if there is a power failure. Again, this is what I've seen in other threads, not my experience since I'm currently running a sumpless system.

OK I realized this a long time ago...kinda obvious, but I am not going to drain my tank, take it off the stand, pull the sump out, build another bigger sump.......

whatcaneyedo;471312]+1 Good advice.

+1 ?? thanks for the help

[mike31154]

Originally Posted by ReefJunkie

OK I realized this a long time ago...kinda obvious, but I am not going to drain my tank, take it off the stand, pull the sump out, build another bigger sump.......


+1 ?? thanks for the help

My apologies, I didn't see anywhere previous in the thread where you mentioned that it was not feasible to run without the check valve due to your current sump size.

[ReefJunkie]

No apologies necessary. My fault for lack of information.
You are totally right whatcaneyedo my mistakes in the start are a pain in the a$$ now and I will have to break it down and do it right, but it has to wait till after the holidays at least. For now...band aid.

[ReefJunkie]

OK you guys got me thinking, maybe I could go with no check valve if I can reduce the amount of water backflow into the sump by raising my return outlets...hmmm

[untamed]

Originally Posted by ReefJunkie

OK you guys got me thinking, maybe I could go with no check valve if I can reduce the amount of water backflow into the sump by raising my return outlets...hmmm

Yes...that is what you need to be thinking about to eliminate the check valve.

[KrazyKuch]

Here is the type of Check Valve I use this


I have it mounted horizontally and it works perfect........I needed one cause Having anti syphon holes on a dart with a single outlet would spray water all over the place and when I placed them lower in the water then my sump would overflow so I had to go with a check valve.

[ReefJunkie]

Thanks for the info Kevin....as far as this problem goes it's on the back shelf now since I just cracked my sump!

[Marlin65]

Originally Posted by KrazyKuch

Here is the type of Check Valve I use this


I have it mounted horizontally and it works perfect........I needed one cause Having anti syphon holes on a dart with a single outlet would spray water all over the place and when I placed them lower in the water then my sump would overflow so I had to go with a check valve.

I use this check valve as well and mine hammers right now. It did not on my other tank though. It must be a plumbing problem I made the return higher in the tank with a flex line so it only hammers for a bit now untill the water drops.