On Tue, 10 Feb 2004 22:16:38 +0100, <ad> wrote:
|i found a lot of posts here about spa so that is why i post this question
|here. i want to build my own spa in my garden. on the web i found two types
|of jets: one for a "ring system"( this is the type with two holes on both
|sides one for water and one for air, yhe water and air suply go from one jet
|to the next in a ring) and one system wilt only one hole for water and one
|hole for air( you need a sing water and air line for every jet).
|what are the advatages/disadvantages of both systems?
|do i need an air blower for both systems?
Most have both. The "ring" type just sucks in air from vents above the water
line. The separate jets go to an auxiliary blower. At least that's how the
cheap ones work. We disconnected out blower, just use the siphon-jets.
Rex in Fort Worth