.. finally, an alternative!
BioControls.com Seen On TV Discovery Ch History Ch NSF NASA
Hi-psi diaphragm pump: This high pressure diaphragm pump delivers for water and nutrient solutions at 100 psi at full efficiency which used with an accumulator tank and solenoid. Sealed diaphragm construction includes polypropylene housing includes check values and automatic pressure sensor (auto on/off).
Notes: Diaphragm pump will operate up to 4 ea. hydro-atomizing Spray Jests without an Accumulator Tank and Hydro-Controller. To take advantage of the diaphragm pump's maximum pressure and optimum efficiency to supply multiple hydro-atomizing Spray Jets use Accumulator Tank and Hydro-Controller with Digital Timer .
Optional Equipment: Accumulator tank, Hydro-controller, Digital Timer, Spray jets, Connectors and Hi-PSI Tubing
Warranty: One-year limited warranty (parts & labor).