Simply Koi and More Koi

a tip if you fit female end cap to the inside of the drain, drill and thread it 1/4 bsp , fit 1/4 to 9mm barbed adaptor short length 9 mm pipe to aireator, ditto the other end ,( but to pump) ,you have a pipe all air and no dirty dead water !! please what ever you do, do not put an air pipe inside a...

chris yes i did read your post! my reason for posting was , many bott draines are hydrogen sulphide genorators , followed by pipe 2 3 4 2=3000gph. my concern is that a novice may conclude that a 2 inch will be better as it will pull clean, do the job better and all at half the cost!! i do not mean t...

chris we is geting silly !!the original ,post bott draines 1 or 2. your reply with flow rates ,may lead him to think fit 2inch to keep clean ! depth sort of matters if you are 6ft down you have to come up! length off pipe! and please all bott drain pipes must end up with bends. my orriginal thoughts...

chris
are you are correct on your flow rate calcs?
if you push through a 2 inch pipe it will go 3000 gals
if you pull from 6 ft down +a couple af 90 deg bends
and through a filter ? my temp lash up i did before
my pond build didnt!!!

davebms