Plumbing

[dayzofspeed]

i will hopefully soon be starting a diy overflow/weir project on my tank, i will be using a 3000lph return pump and was wondering what gauge pvc pipe i should be using in order to get enough flow and also avoid any gurgling air sucking noise......... all advice appreciated as always

Kevin

 

[woody88]

Not sure exactly as Im not sumped but on loads of different systems with different pump flow rates the common sizes seem to be 25mm - 32mm I think.

Sorry if it don't help mate!..............I might even be wrong! Lol

 

[dayzofspeed]

right so we are talking inch to inch and a quarter in old money

 

[Uriel]

for a 3000 lph pump you want 32mm pipe. To stop gurgling you will need a durso stand pipe this will reduce the noise but not stop it completely. If you want it to run silently you need to drill 2 holes and do 1 as a durso and 1 as a siphon. This is what i did on my build and it's very quiet and no air gets into sump. Durso also acts as a back up if something stops the siphon.

Also you need the edge's of your wier to add upto minimum 12" to stop noise at wier.

 

[Stampos]

Agreed, 32mm overflow, 25mm return

Simon