Overflow Q

brett

O. vulgaris
Registered
Joined
Mar 25, 2004
Messages
96
what is the GPH of a 1 inch hole for a side drilled overflow? I drilled my tank with a 1 and 1/4 bulkhead and it can not handle my 700 gph pump. it oveflows the tank so im adding another? I was just wondering if anyone knows the GPH of a hole about 1 inch in diameter?
 

Colin

TONMO Supporter
Registered
Joined
Nov 14, 2002
Messages
3,985
I dont think that there is an exact way to answer what the GPH will be... but you are doing the right thing adding another hole. My large cuttle tank when i had it, had three 1" holes on the side panel and that was a 600 or 700gph pump
 

brett

O. vulgaris
Registered
Joined
Mar 25, 2004
Messages
96
ok yea cuz i think i am gonan throttle my pump down too so it seems like it will work if the mesh coevring the holes doesnt slow the flow too much.
 

Colin

TONMO Supporter
Registered
Joined
Nov 14, 2002
Messages
3,985
Okay, also watch for the octopus blocking the holes, thats another reason i had three in the first place... Spread them out :smile:
 

Latest Posts


Top