Here we have (on the left) a prime example, and one of many we've encountered, of a Megaflo that has been destroyed by unqualified and untrained operatives.
This particular installation was carried out by the customers builder and so called plumber.
The whole installation is appalling.
The electrical system caught fire, and the occupants were lucky the house didn't burn to the ground.. While they were still in it!
This property is in East London, and is typical of Builders taking short cuts, to extract as much profit as possible, rather than use qualified, experienced engineers.
Personally, I have little sympathy for the owner.
You gets, what you pays for, me thinks!