9
HIGH PRESSURE HOSE
The high pressure hose has factory mounted high pressure couplings on each end (also included are two
field attachable fittings). This hose comes in a 15 feet / 4.5 m length, so it may be cut to suit your needs.
Leave a little extra length of hose to avoid stress on the system components.
CAUTION: Never bend the hig
h pressure hose tighter than a 6”/15
cm radius.
Assembly instructions for the stainless steel field attachable high-pressure couplings
1) Cut the hose in a clean 90
angle preferably with a cutting disc or fine tooth hacksaw.
2)
Un-assemble the coupling (remove threaded inner part from outer part).
3)
Rotate the socket (outer part) anti clock wise on to the hose until hose bottoms. Back the hose out
½ turn to allow for expansion of the hose during assembly.
4)
Apply dishwashing liquid mixed 1:1 with water on to the nipple (inner part) of the high-pressure
fitting and the inside of the hose.
5)
Hold the socket preferably in a vice and screw the nipple all the way into the hose. The straight
fitting is supplied with a hexagonal plug as an assembly tool.
Run one of the high-pressure hoses from the output of the HP pump (O ring sealed fitting) to the O ring
sealed fitting at the end of the membrane that is marked IN.
CAUTION: A minimum hose length of 3 feet / 1m is required for pulsation dampening. The hose can be
coiled where needed.
Run the second high-pressure hose from the outlet of the RO membrane housing to the pressure control
valve in the control panel. Do not over tighten the high pressure fittings. They are O-ring sealed and need
little torque to lock only.
CAUTION:
When connecting the high pressure hose to the membrane housing (s), avoid over tightening.
The fitting is o-ring sealed and does not require much torque.
PRODUCT WATER TUBING
Using the blue product water tubing, connect the center fitting of the membrane housing with the bottom
fitting (inlet) of the flow meter in the control panel. Connect the tubing or hose from each output port of
the 3-way valve to your water tank and to the taste/test station of your choice.
CAUTION: Under no circumstances should the product water line be allowed to become blocked while
the system is running. Do not install shut-off valves anywhere in this line.
CAUTION: Do not allow chlorinated water from your storage tank to flow back into the R.O. membrane.
You may directly
“T” your product water line into the tank vent (Re
fer to the Flow Diagram). This avoids
chlorinated
water to back flow from your water tanks into the R.O. membrane and does not require a new
fitting in your tank. This solution requires a vent of sufficient diameter as the product water will have to
flow against the escaping air. If the product line must be installed below tank water line, an optional non-
return valve should be installed.
An existing hand pump style spigot, with a check valve only can be used as test station. If using this type
of spigot for two sources (tank and test), install low-pressure non-return valves in the tank- and
product li
ne and “T” both
into the existing hand pump spigot.
