Hey guys, I have 3/4 tubing for the return line from my pump to my tank and when I cut the pump off I have a bit of siphon from the display that adds to my sump. I am having the hardest time finding 3/4 barbed check valves. Do you all know of anywhere online that sells them? I have only been able to find pvc check valves and I really don't want to buy barbed adapters for all that mess.
check valve on return line.
- Thread starter Casey Gore
- Start date
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LiveWire
Master Electrician/Certified RODI Guru
IMO Check valves will work for awhile but they are made to fail so I would not depend on a check valve for the long run. You can get them at Amazon but I would try to figure out another long term approach to the problem. Maybe less water in the sump if that is possible or an upgrade to a larger sump.
https://www.amazon.com/Flow-H2O-Aqu...M6/?tag=bingshoppinga-20&linkCode=df0&hvadid=
https://www.amazon.com/Flow-H2O-Aqu...M6/?tag=bingshoppinga-20&linkCode=df0&hvadid=
o2manyfish
Valuable Member
Installing a check valve is like putting on a condom on a first date and expecting the same condom to work at your 5 year anniversary... It could work - but are you really going to risk it?
Put a loop in your return that comes above the surface of the water and drill a small hole - this will create a siphon break and stop the water coming down.
If you want to do both -- because between the check valve and the siphon break.... only one is going to make sure you don't end up with more kids spilling on your floor :) at least order the check valves with the unions on each end. And order several. I use check valves so that I can do maintenance without dropping water levels and for an automated 2 pump back up system. I have one box of extra check valves ready to swap, I have another box soaking in vinegar and I have the ones that are installed on the system.
But if every single check valve fails, I only have about 1.5" of water rise in my sump (it's a 340g sump so 1.5" is some water).
Dave B
Put a loop in your return that comes above the surface of the water and drill a small hole - this will create a siphon break and stop the water coming down.
If you want to do both -- because between the check valve and the siphon break.... only one is going to make sure you don't end up with more kids spilling on your floor :) at least order the check valves with the unions on each end. And order several. I use check valves so that I can do maintenance without dropping water levels and for an automated 2 pump back up system. I have one box of extra check valves ready to swap, I have another box soaking in vinegar and I have the ones that are installed on the system.
But if every single check valve fails, I only have about 1.5" of water rise in my sump (it's a 340g sump so 1.5" is some water).
Dave B
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