Pipes to my 4 year old shower thermostatic shower mixer developed water hammer.  Bled the system without success then my plumber nephew suggested replacing the flow cartridges in the mixer.  Suggested buying a new unit as was just as cheap and easy as sourcing and buying new cartridges.  Unfortunately it has two outlets being an external unit - flexible & rainfall heads- so needed new cartridges.

 

Phoned the manufacturer, Marflow, got straight through to the after sales service dept, based in UK, not some useless overseas call centre. Chap supported the idea of replacing the flow cartridge but recommended replacing flow & temperature at same time.  Didn’t have proof of purchase as builder bought the items I selected but I did have the quote which was good enough for them and I was sent two new cartridges for free, arrived within a couple of days.  Fitted and problem solved.

 

What ever happened to good customer service like I received.  
 

 

 

 

 

Fair play to them, doesn't happen very often!