Spectra Watermakers SF-MT-0.5-10 Ro Membrane Replacement, Fig. E Membrane Housing, SpectraPure

SpectraPure®

RO MEMBRANE REPLACEMENT

1.Turn off the water supply to the RO system. Place the system where the membrane housing is easily accessible.

2.Remove the black tubing from the membrane feed push-fitting

by depressing the collar on the fitting with your thumb and pulling the tubing from the push-fitting (Fig E).

3.Lift the membrane housing from the retention clips.

4.Unscrew the membrane housing lid. This may require two people.

5.Use a pair of pliers to grasp the membrane stem and pull the membrane from the housing (Fig. F).

6.Remove the black housing O-ring (Fig. F). Wash the empty housing with soapy water. Rinse thoroughly with hot, clean water.

7.Insert new membrane into the housing, with the double O-ring end first (Fig. G). The tube must fit into the recess at the bottom of the membrane housing. When the membrane is aligned with the hole, firmly push the membrane into the hole until it bottoms out.

8.Place the black housing O-ring on the housing rim and carefully screw the lid back on to the base.

9.Reconnect the black tubing to the membrane feed push-fitting.

Note: If you have a dual-membrane system, perform steps 2 thru 9 on the second membrane now.

10.Disconnect the yellow concentrate tubing (Fig.C) from the membrane housing and remove the flow restrictor (Fig. D) from the yellow tubing (Refer to the procedure on page 11-12).

Fig. E: Membrane Housing

membrane feed	black feed tubing	blue product
push-fitting		water tubing

membrane housing lid yellow concentrate tubing

SpectraPure®

CHECKING THE CONCENTRATE TO PURIFIED WATER RATIO

This procedure will assure you of maximum life and reliability of your SpectraPure System. Failure to perform this procedure can permanently damage the membrane and will void the pro-rated Membrane Warranty.

In order to maximize the life of your SpectraPure RO Membrane, you may need to adjust the ratio of the concentrate to purified water. If not enough concentrate is allowed to flow past the membrane during operation, the impurities will precipitate out on the membrane surface, clogging the RO Membrane. To keep this from happening, the Concentrate to Puri- fied Water Ratio must be checked and adjusted in order to compensate for pressure and temperature variations that exist in all water supplies. The flow rate of the concentrate must be a minimum of 4X the product flow rate. 4X to 6X is an acceptable concentrate flow rate.

Procedure:

1.Open the cold water supply valve and let the system run for 15 minutes. Direct both tube down the drain.

2.Collect product water from the blue tubing into a measuring cup for one minute. Measure the collected amount in milli-liters. Do the same with the waste water from the yellow line.

WASTE (YELLOW) IN MILILITERS______________

DIVIDED BY

PRODUCT (BLUE) IN MILILITERS______________

The resultant is the Concentrate to Product Ratio

(Although not needed in this proceedure, the daily product flow rate in Gallons per Day

(GPD) can be calculated to be equal to the product flow rate times 0.38 ).

3.If ratio is less than 4:1

Disconnect yellow drain line from the membrane housing and then remove flow restrictor. Use the appropriate Flow Restrictor Chart to determine how long to cut the flow restrictor in order to obtain a 4:1 ratio. ( Figure B)

* Please refer to pages 11-12 for Flow Restrictor Removal, Adjustment, and Replacement. *

4.If ratio is greater than 6:1, flow restrictor requires replacement (Please contact SpectraPure Inc).

5.Turn on feed supply.

6.Check for Leaks.

7.This completes the procedure.

NOTE: WHEN TESTING AND ADJUSTING THE RATIO THE WATER PRESSURE

SHOULD BE BETWEEN 40-80 PSI.

	SpectraPure®Inc. 480.894.5437 Call us toll-free 1.800.685.2783
16	2167 East Fifth St, Tempe, Arizona 85281

SpectraPure®Inc. Fax 480.894.6109 Fax us toll-free 1.877.527.7873 E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com 9