pH unaffected by drawing outside air

[YOYOYOReefer]

one option is if your skimmer is not pulling enough air (looks like its a needlewheel) you might want to get a venturi skimmer or a beckett , somthing that pulls alot of air.

 

[Cory]

If your overflow box to your sump draws in inside air it will counteract any rise in ph from the skimmer. I have added outside air pumped into my overflow box. That made more of an impact that the skimmer did since my sumps in the basement.

 

[DuesXX]

If your overflow box to your sump draws in inside air it will counteract any rise in ph from the skimmer. I have added outside air pumped into my overflow box. That made more of an impact that the skimmer did since my sumps in the basement.

How do you mean? It’s an open top tank but I do have a vent off the actual drain itself. You saying to tie it to outside air?

 

[Cory]

How do you mean? It’s an open top tank but I do have a vent off the actual drain itself. You saying to tie it to outside air?

My tank has a glass lid. It has an overflow box, a sump, and a skimmer. I pump outside air into my glass lid, my skimmer and my overflow box. This way all the inside air does not enter except for the sump. Yes youll need to pumph fresh air into the overflow drain if it sucks inside air into it.

 

[Cory]

Heres a pic, that white pvc in the top right corner is a slow supply of fresh air being pumped into the overflow. I put saran wrap over the top to prevent home air from going in too.

 

[Cory]

I use one of these overflow boxes

 

[Mical]

I’m running Zeovit.

I'm not familiar with Zeovits recommendations, but all your Params (Alk, Cal & Mag) look low. I keep my Alk about 10, my cal 450 and mag 1300 and my Ph runs 8.12 - 8.28 daily