PVC overflow pipe size and pump

[Death03]

I am planning to have a wet/dry filter in my 60g and I've read that 1/2" flows for about 150gph and 3/4" for 337.5gph, but my only powerhead here is only runs 211.3gph (800l/h) which size should I go for? I'm a beginner when it comes to DIY and this will be my first overflow system so please be patient with me and I have a ton of questions

EDIT: This just popped in my mind and I don't know how to delete a thread lol can I just have a powerhead as an overflow and another powerhead in the wet/dry system? please answer in my other thread.
http://www.monsterfishkeepers.com/f...low-into-wet-dry-filter&p=6898065#post6898065

 

[Lgw]

I wouldn't recommend using a power head as an overflow, if it fails you will end up flooding the tank.

As to the size of the overflow, you always want an overflow that will handle the flow rate of your sump pump and some. Just to allow for gunk and other nasties that might slow down the water flow. Eg. If your pump is 10gph, you'll want a 15gph overflow. Hope this helps

 

[WiredDragon93]

I used to have an overflow system for a diagramming rack. They were 4 10g and 1 50g. I used 3/4 pvc. My return was a 550gph submersible pump. To adjust the flow rate, I had ball valves on each one (For Return). What you can do for yours is install 2 overflows connecting into one drain. Then (If you can) install a ball valve on your return. the wet/dry filter is a whole different section of the project so you can mess with that later. Basically what you want to do is balance the rate from both in and out of your tank.

Sent from my LG-MS870 using MonsterAquariaNetwork App

 

[rodger]

Powerheads don't make good return pumps. They lose flow real fast the higher the return. You will need a much larger powerhead to achive the kind of flow you need.

Sent from my SCH-S960L using MonsterAquariaNetwork App