BottomLine® Weighted Airline by Vertex is is perfect for aeration systems where long feeder line runs are required (up to 1500 feet). This black line stays on the bottom and requires no weights to keep it down. Makes installations easy and clean. Flexible, non-kinking PVC hose is easy to cut and uses standard 5/8" or 1/2" barbed connectors. Use this weighted tubing in the water only. W
Available in 100' rolls or 500' reels.
Air Friction Loss of 5/8" Tubing
CFM | Distance | PSI Friction Loss |
2 | 100' | 0.14 PSI |
3 | 100' | 0.29 PSI |
4 | 100' | 0.47 PSI |
5 | 100' | 0.70 PSI |
6 | 100' | 0.96 PSI |
8 | 100' | 1.58 PSI |
Do not try and force too much air through your tubing or you will experience back pressure on your air pump caused by the friction loss. When long tubing runs are required consider using a 3/4" I.D. tubing. With 5/8" airline you can typically run lengths of up to 1000' per single line but this depends on your air compressor output.
Make sure your air compressor, air blower or air pump has the proper balance of available pressure for the CFM requirements of your system diffusers along with any friction loss over long distances with high airflows.
Contact us if you are unsure.