Pond Boss Forums AERATION Systems questions Supply pipe size question

Im about ready to install my system but have a question on supply pipe size. I can install the system 2 ways. One is with the compressor in my garage out of the weather or build a enclosure and place it at the ponds edge.(I have the power already there) The question is: If I place the compressor in the garage the supply line will need to be almost 300 ft long. I was wondering if 1/2 inch black poly pipe will supply my two 9 inch diffusers at that distance. If I understand it right I only need 1/2 cfm per diffuser. Also, any new ideas on weighting the supply hose in the water? I filled 2 garden hoses with sand and plan on using cable ties and attaching them to the supply pipe, unless I find something better. Thanks for your help.

Depends on the compressor specs ( cfm output/max psi)1/2 cfm per disc may be a minimum .they should have a range listed.The back pressure in a 300 ft 1/2 line can be fine for some compressors and too small for others.The smaller the line the more the back pressure/ the more back pressure you have the fewer available cfm's

Its 1/4 hp 220v rated 4 CFM at 0 in. Hg. Gast

Rotary vane (0523) ??

Yes, it is rotary vane. Its a 0522. Dont know what the difference would be.

very similar,That may be a 10 psi pump and the lower the running pressure the longer it will last.If your two discs are rated .5 cfm you have too much pump and will need to bypass some air or add diffusers.Look for a cfm range from the diffuser manufacturer.If they are rated to 2 cfm each you may be OK as long as they dont cause the back pressure to exceed the suggested top end from Gast.If you put it 300 ft away I would use an ID of at least 1 inch (bigger even better)or two lines works well too. If you mount it pondside use no less than .5 inch lines to each diffuser.You might air it up out of the water to see how much back pressure you have and then figure adding .5 psi to that reading for every foot of water depth the diffusers are in.Try to match everything up to have the lowest back pressure possible for the longest system life.

Nashfireman, spend the extra money for the self-weigted hose that Ted Lea sells. It's well worth the extra money. It's more flexable, longer life, and a WHOLE lot less hassle to move. Trust me, you WILL move it more often than you'd think!

Thanks for the help !!!

My personal experience with soaker hose with attached garden hose filled with sand is very flexible, and can be coiled or moved easily. Have done it many times.
If you have the money for the weighted hose it probably is a great option. My 2 cents.