Hello All:
I'm in the process of plumbing from my newly drilled holes in a 45 gal glass tank to a sump. I have a 1 1/2" bulkhead for the drain and 1" bulkhead for the return. I have heard that sometimes there is a slurping noise when the water drains through the prefilter box and into the drain. I have about 7 1/4" clearance behind the tank.
One LFS told me to just use a 90 degree elbow turning down and followed by straight pvc to the sump. Said it will be fine that way. Another LFS told me that there will be battles with air bubbles that way - he always uses a Tee short piece coming out from the bulkhead... then leaving the top of the Tee open so that air can help gravity take the water down the pvc without air pockets getting in the way. It sounds like a good idea, except that after I add a threaded bushing out of the bulkead... use a short length of pvc pipe to cement to the Tee, it extends more than the alloted 7 1/4" behind the tank.
Does anyone have thoughts as to what kind of slurping noise and/or fighting with air bubles I will have if I just use a 90 degree elbow and take my pvc pipe down to the sump without the air vent method of the Tee? Is this the right forum for this type of question?
Thank you kindly.
I'm in the process of plumbing from my newly drilled holes in a 45 gal glass tank to a sump. I have a 1 1/2" bulkhead for the drain and 1" bulkhead for the return. I have heard that sometimes there is a slurping noise when the water drains through the prefilter box and into the drain. I have about 7 1/4" clearance behind the tank.
One LFS told me to just use a 90 degree elbow turning down and followed by straight pvc to the sump. Said it will be fine that way. Another LFS told me that there will be battles with air bubbles that way - he always uses a Tee short piece coming out from the bulkhead... then leaving the top of the Tee open so that air can help gravity take the water down the pvc without air pockets getting in the way. It sounds like a good idea, except that after I add a threaded bushing out of the bulkead... use a short length of pvc pipe to cement to the Tee, it extends more than the alloted 7 1/4" behind the tank.
Does anyone have thoughts as to what kind of slurping noise and/or fighting with air bubles I will have if I just use a 90 degree elbow and take my pvc pipe down to the sump without the air vent method of the Tee? Is this the right forum for this type of question?
Thank you kindly.
