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I have a Megaflo cylinder, that looks very much like this one:

enter image description here

It is fed from a central boiler system in the building (I live in a new build flat, about 5 years old). The Megaflo provides hot water to two bathrooms (showers and sinks) and the dishwasher, washing machine and kitchen sink, as well as the central heating.

When I first moved in, I could happily have two people showering at the same time, and have the washing machine on, and there would be no noticeable drop in pressure. There were some issues with the central boiler a few weeks ago and ever since, my pressure has been very low in the second shower if the first shower is in use.

I have been reading up on this, and there are two possibilities. The first is that the pressure from the 'mains' (water coming from the central boiler) has dropped since the issues and so isn't powering the Megaflo properly, and the other is that I need to "regenerate a bubble" in the Megaflo.

I have two questions:

  • Is there an easy way to find out if the pressure coming in from the mains is sufficient for two showers?
  • Is it possible to "regenerate the bubble" myself, or do I have to get a specialist in? I can't find any instructions for this on the internet, and I don't have the owner's manual.

Any suggestions appreciated.

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Note: when I say "an easy way", I don't have much DIY experience and only a handful of tools (basically, a few screwdrivers and a couple of adjustable spanners) so I really mean "a way so easy a 5-year-old could do it" :) –  Matt Apr 15 at 11:03

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