Custom sump and DIY overflow

[Land2013]

My meaning is at the overflow box and not the return. Add a hole at the return pipe will prevent water pump from sump to DT but how if no water go down to sump if siphon break?

[Martian]

Sorry, don't understand your question. Like I suggested anti siphon hole is a cheap and easy way to prevent siphon occurring in your return.

Just add a check valve will do. I also had this problem when I turn off the return pump so I added a check valve - check valve also makes it easier to dismantle the pipings for maintenance.

[Martian]

Just add a check valve will do. I also had this problem when I turn off the return pump so I added a check valve - check valve also makes it easier to dismantle the pipings for maintenance.

Sorry, I'm totally lost... My post above is for return from sump to DT.

[DerrickLim]

Sorry, I'm totally lost... My post above is for return from sump to DT.

One of u is talking about siphon break at inlet, the other talk Abt return pipe.

Anyway I am more in favour of check valve at return pipe. Just wonder if I need 2 check valve in series in case 1 fail. Read in one post earlier that a reefer in Malaysia has a check valve failure and whole room flooded.

[Martian]

Double protection is always better but it depends if you gave enough pipe run to house them...

[DerrickLim]

Manage to get it running with double check valve at return pipe. Manage to get my eheim pump to run externally too! So exciting. Hahaha

[DerrickLim]

Double protection is always better but it depends if you gave enough pipe run to house them...

Bro, where do u stay? Gotta buy u a drink! Thanks so much for yr tips.

[Martian]

Bro, where do u stay? Gotta buy u a drink! Thanks so much for yr tips.

No problem... just trying to help another reefer who likes DIY projects too...