Im converting my 29 down to a 20 long and using the 29 as a sump (not the entire tank just about 1/2 to 2/3rds). My algae problem has gotten out of control and Im starting fresh.
Anyway I have never drilled a tank and though that doesnt worry me placement of the drains do.
First question is most people on another forum said to drill 2 drains. 1 main and 1 for redundancy if the first clogs. Im not sure the chances of that but Ill do it.
I picked up 2 1" bulkheads for the drains but one will only be used at a time.
The main outlet is this
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I planned on placing that about 2/3 or half down the tank and using a stand pipe between the 90 and strainer to get the proper height (Im not sure if this should be 100% submerged or just at the top for surface skimming to sump). Can the main drain be 100% submerged?
The second drain would be drilled higher up and I would use a pvc 45 to act as a backup drain
I then bought these as returns, which will also double as circulators since my powerhead is a bit powerful for a 20 gallon tank. These are each 3/4, which the return pump would feed.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I made this diagram in photoshop to sort of give an idea of what Im looking to do.
Behind the tank Im looking to vent each drain up for better drainage with a check valve on top
If anyone has input Id love to hear it so I can hopefully do this right the first time.
Thanks