Pumped shower query, please?

[Burnerman]

Guy next door to me has had a new bathroom fitted, complete with a pumped shower. He has the copper cylinder on the loft floor, header tanks higher etc.
The house has single occupancy.
He reckoned that the installing plumber didn't like taking the shower feed from the usual 22mm outlet at the top of the cylinder and instead he put a 22mm tank fitting about 9" further down through the outside of the cylinder. The thing is, he didn't seem (I'm told) to remove the immersion heater and used some sort of fitting that could penetrate the cylinder simply from the outside...is such a fitting available?
Also, is there a problem with taking the shower feed from the very top of the cylinder, just using a tee?
Whatever, the system works well.
Once again, I'd be really interested in any comments - a brilliant forum!!
Cheers John

 

[Softus]

He reckoned that the installing plumber didn't like taking the shower feed from the usual 22mm outlet at the top of the cylinder

He "reckoned" wrong then - the plumber has acted correctly.

...and instead he put a 22mm tank fitting about 9" further down through the outside of the cylinder.

That's an Essex flange - the best way of supplying hot water to a shower from a vented cylinder.

The thing is, he didn't seem (I'm told) to remove the immersion heater and used some sort of fitting that could penetrate the cylinder simply from the outside...is such a fitting available?

Yes. Very widely available.

Also, is there a problem with taking the shower feed from the very top of the cylinder, just using a tee?

Yes. It's not recommended by anyone, especially shower valve and pump manufacturers. The reason being that it's prone to sucking air down the open vent.

 

[Burnerman]

Again, well cool. I'll hunt down an Essex flange to check it out. Thanks very much! Cheers John

 

[Softus]

You're welcome. We aim to please.