HIDROTEK RO 1812 MEMBRANE - 75GPD N.A.

HIDROTEK 1812 75 GPD REVERSE OSMOSIS MEMBRANE (GALLONS)

The reverse osmosis membrane is considered the heart of a reverse osmosis system. It is the most important part of the system, as it separates harmful substances from the water, removing them via a waste stream, from the healthy water, which is sent to the tap ready for use.

Hidrotek model 1812 75 GPD reverse osmosis membranes are ideal not only for home reverse osmosis water purifiers but also for aquariums and other types of filtration.

It has a 70-gallon capacity, meaning it could produce over 300 liters of purified water daily.

- How do reverse osmosis membranes work?
Reverse osmosis membranes work on the principle of separating incoming water into osmotic water (permeate) and rejection (waste). Their operation is influenced by many factors, primarily temperature and pressure. The manufacturer specifies the performance standard at 25°C and 4 bar of pressure. Do not exceed the maximum recommended pressure of 7.5 bar indicated in the technical specifications. Exceeding this pressure increases the permeate but drastically reduces the membrane's lifespan.

- When is it necessary to replace a reverse osmosis membrane?
The membrane in osmosis systems must be replaced based on the volume of water treated and the quality of the incoming water. Two signs indicate the need to replace osmotic membranes: a reduction in permeate, i.e., the quantity of water produced, and the quality of the permeate (i.e., the osmosed water). The first parameter is easily visible, while the second requires measuring instruments such as litmus paper or a conductivity meter (see related products).

- How to replace a reverse osmosis membrane
1. Turn off the water supply to the osmosis system (using the bypass valve mounted near the wall water inlet) and disconnect the power.
2. Close the storage tank ball valve, if present.
3. Open the purified water supply tap to remove any water from the pipes and relieve pressure from the system.
4. Identify the vessel(s) containing the reverse osmosis membrane and unscrew the cap.
5. Using parrot-nose pliers, remove the old membrane by gripping its plastic shank.
6. Remove the new membrane from its packaging, being careful to only touch the plastic part to avoid bacterial contamination.
7. Grease the black gasket that acts as a collar and the O-rings at the end with Vaseline or food-grade silicone grease.
8. Insert the new membrane into the vessel and screw the cap back on.
9. Re-open the system's water inlet valve and reconnect the power supply (leave the storage tank valve closed, if present).
10. Rinse the membrane by leaving the water tap open for at least 20-30 minutes.
11. Re-open the valve on the storage tank and... you can use the system normally!

## Compatible spare part or with identical characteristics:
- Vontron ULP 1812 Membrane - 75 GPD
- Ceasa RE1812-75T Membrane
- TFC 1812 Membrane 75 G