Vaksha

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No water upstairs when downstairs is on

We have a CL125 megaflow installed on the ground floor of a 3-storey house. If we use the shower on the third floor, the pressure is very good. However if someone uses the water on the ground or 2nd floor (whether it be flushing the toilets, washing machine, sink etc), the water flow stops on the third floor. Likewise water will reduce or stop on the 2nd and 3rd floor if someone is using water from the ground floor, and similarly, there will be good pressure on the 2nd floor if no one is using any on the ground floor. Our cold water throughout the house is drinking water (which presumably is coming straight from the mains) Is there anyone that can help?
Vaksha   (Level 1)  |   DIY  |   17 Apr 2011 15:47
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gices gices  (Level 1)  |   23 Aug 2011 22:28

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The megaflow is probably losing the air gap so it might need a recharge. You will find instructions on the side telling you how this is done. Usually this should do the trick:

1. Turn off the water to the megaflow system
2. Open any hot water tap
3. Turn the relief valve clockwise to open it
4. Close the relief valve when the gurgling sound stops

You might need to do that a couple of times a year though.
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