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Spares RO System

We stock all components and parts required for a residential RO system. The components are of the highest quality and are made by the most trusted  brands and suppliers for RO componentry.

The replacement parts are suitable for most residential RO systems. 

 

schematic  ro

 

 

 

It is critical to match the reverse osmosis membrane with a correctly sized drain line flow restrictor to ensure the proper waste to product ratio is met.  A mis-matched combination will allow either excess water to flow to the drain or cause premature fouling of the membrane.  The waste to product ratio may vary slightly from one manufacturer to another.  The chart below provides you with the standard ratios used.  The first number (3) indicates the waste and the second number (1) indicates the portion of purified water produced during the same given time period.  REMEMBER that the reverse osmosis system comes with a shut off valve that stops the unit from producing any waste or product water once the reverse osmosis storage tank is full.  The average household reverse osmosis system will waste less than 2 flushes of a toilet.

Membranes Daily Gallon Rated Capacity

ML/ MIN For A 3/1 Ratio

ML/MIN For A 4/1 Ratio

ML/MIN For A 5/1 Ratio

10 GPD

80

105

131

16 GPD

126

168

210

18 GPD

142

189

236

24 GPD

189

252

315

36 GPD

283

378

473

50 GPD

394

525

657

75 GPD

591

788

985

100 GPD

788

1050

1314

150 GPD

1182

1577

1971

 
 

 

 

Residential & Rural > Spares RO Systems - Faucets, Tanks etc

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