Plumbing issue need help a worchester bosch system boiler and a joule 250ltr unvented cylinder

[Tim78]

Customer specified the showers

 

[Best]

You just need to be careful with that.
In one way it is to your advantage that customer specified showers (and probably taps?) because you can argue it is their mistake and would have required ideally more flow using an accumulator you recommended but they couldn't afford.
But small claims court judge would perhaps say you, as the expert installer/contractor should have known that the showers type and amount would be too much for the mains supply.

 

[Best]

I would try to work with customer on simple improvements and tell the customer that at the end of the day they cannot have any better flow rates that what their single mains pipe entering the house can produce. Maybe the shower heads is the first thing to see if they can be replaced or restricted ?

 

[Tim78]

Yes I have tried she is saying she wants everything left like it is. She keeps bringing up bs6700 and that all showers on with taps at need to run to a certain standard

 

[SimonG]

Bs 6700 doesn't cover it, unless you were running 10mm pipework etc. It's a simple maths issue. Shower flows combined don't equal what you have coming in.

But then I think you are on dodgy ground though. Unless you have paperwork to show you offered accumulator etc.

Not an easy one.

 

[SimonG]

Bs 6700 doesn't cover it, unless you were running 10mm pipework etc. It's a simple maths issue. Shower flows combined don't equal what you have coming in.

But then I think you are on dodgy ground though. Unless you have paperwork to show you offered accumulator etc.

Not an easy one.