"Julia Mann" wrote in message
om...

Thanks for all the advice. As I am totally non-technical some of it is
a bit beyond me! However, there are a few things I should perhaps
clarify.

I have a warm air heating system which was there when I moved in
(almost new) which I am keeping so no chance of a combi.

Good move.

I have to have the cylinder changed to an
indirect y-plan system so I can have
rads running off, heated by the warm air
unit water heater. This is ok, it's just that
I have been told that a megaflow is the only way to
get the hot taps running ok.

Not so. A heat bank is cheaper and will heat up quite fast if it is
connected directly (no coil) to the water heater. The rads can be run off
the heat bank cylinder by having a flow and return run off the bottom of
the heat bank cylinder. I assume you have a Janus water heater.

I already have a nice new electric shower installed.

Why?

Basically it's just 3 sinks which are suffering and so
spending any more than is absolutely needed
is going to be painfull!

Exactly. Find what the flow problem really is. If a new cylinder is
required do not go unvented Megaflo, go "integrated" heat bank. Cheaper and
more efficient.

I had a quote today of about £800 (just
supply) which is nowhere near
what I was expecting!!

You mean over the top?

I spoke to a guy today who thought
it could be the pipework which has
been used to install the new sinks -
the bath is ok (fills faster than
any I have ever had before) and this
is the original bath using the
original pipework. He said hot water
pipes should be 22mm,

To the bath, yes.

but the ones going up underneath the
new sinks in my flat are 15mm.

That is correct.

He also said flexi hoses severely
reduce flow, which have been used on 2 of
the sinks as far as I can see.

If they are kinked, yes. Replace the flexible hoses with plastic pipe on one
sink and see what happens.

My guy said the bath has a better flow because it is lower down. It's
only a matter of inches - can this be true?

No. That is balls.

Is it possible he has used
incorrect pipework and just doesn't
want to admit it?

The pipes sounds fine. It is probably the flexible hoses and/or the taps.

When I asked him he did not know that
some taps were unsuitable for gravity fed systems
so the kitchen one may be useless anyway and
the flow is pitiful. My mains cold water pressure
is very good indeed.

Points to flexible hoses and taps.

Another thing is he has installed a shower
for me and the outside drain became blocked
and sewage came back into the shower! He
admitted he hadn't installed a non-return
valve as they can get blocked themselves
so it's not a good idea. The drain unblocker guy said I
should have had one.

Am I being taken for a ride?

Could be. It appears this guy is an amateur.




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