User Manual
Permeate Pump Installation Instructions
1. Inspect Permeate Pump (Figure 1) and Optional items, i.e. 4 fittings, Permeate Mounting Clip Kit, and 
Retrofit Kit. Remove the plugs from the 4 ports and make sure there is no foreign material in the ports. 
2.  If you have ordered John Guest stem fittings (optional), firmly attach the 4 fittings to the 4 John Guest 
ports. Be sure each stem bottoms out in the port. 
3.  Mounting of Permeate Pump: Two methods are commonly used. If you ordered Part Number 25-021 
Permeate Mounting Clip Kit, (includes clip and 2 #10 x 3/4" self tapping screws) mount the clip on the 
system’s bracket or other suitable location using the two screws provided. Also available, upon factory 
request, is a retrofit kit consisting of a membrane housing clip with nut and screw (Figure 3). Drill a #10 
hole in the center of the base of the Permeate Pump Mounting Clip and join the two clips (Permeate 
Pump and membrane housing) at their bases using the screw and nut provided.  The Permeate Pump 
mounts onto the R.O. membrane housing using the clip assembly. 
4.  The label clearly show the location of each port. Mount the Permeate Pump with Outlets (both brine and 
permeate) Positioned Up. This step is VERY IMPORTANT to rid any entrapped air. 
5.  Shut off feed water and turn off product tank valve. Bleed residual pressure by opening the faucet. 
6. Locate the "BRINE TO DRAIN" tube. it is extremely important that the flow restrictor is in front of (before) 
the "brine inlet" to the Permeate Pump. The pump will not operate
 if the restrictor is in the "BRINE 
OUT" line leading to the drain. 
a.  If you cut the tube, be sure the cut is after
 the flow restrictor. Insert tube firmly into "BRINE 
IN" fitting on the Permeate Pump. Be sure tube bottoms out in the fitting. 
b.  Connect a new length (long enough to reach the air gap drain) of tubing to the "BRINE OUT" 
fitting on the Permeate Pump. Be sure tube bottoms out in the fitting. This tube connects 
directly to the air gap drain. 
7.  Locate the product water (permeate) tube exiting (after) the membrane leading to the inlet side of the 
hydraulic shut-off valve. The outlet tube from the hydraulic shut-off valve leads to the TEE on the inlet 
side of the post-filter which leads to the product water tank and the product delivery faucet as shown in 
Figure 4. 
a.  Disconnect the tube from the inlet side of the hydraulic shut-off valve and connect the tube to 
the "PERMEATE IN" fitting on the Permeate Pump. Be sure the tube bottoms out on the 
fitting. 
b.  Connect a new tube from the "PERMEATE OUT" fitting on the Permeate Pump to the inlet 
side of the hydraulic shut-off valve as shown in Figure 5. Be sure the tube bottoms out on the 
fitting. If it is desired not to use the hydraulic shut-off valve, connect the permeate pump as 
shown in Figure 6 (see installation notes). 
8.  Turn on feed water supply and open product tank valve. The Permeate Pump should begin cycling. An 
audible clicking sound will be heard as the pump operates. Be sure to point this out to your customer so 
that he understands that this is normal This will avoid a service call later. 
Important:  If pump is not cycling (clicking), make sure all connections are made correctly and that all 
entrapped air has been bled from the lines by just cracking open the faucet. 
Note:  The attached specification sheet shows a typical R.O. system diagram for reference. If you 
want to retrofit another type of R.O. unit (a manifold type) or if your system has another 
configuration of hydraulic shut-off valve, or if you are using an electric booster pump, consult 
factory for instruction. 
Aquatec Water Systems, all rights reserved  IMI-106, Revision C, 4/04  Page 1 of 3 
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