Zilmet 0.16Ltr Potable Expansion Vessel Shock Arrestor & 15mm Tee

Good quality product as described fast delivery

Just works where others didnt

Good product did what I wanted

Arrived in quick time and easy to fit.

Easy to install using the compression joints. the washing machine now runs almost silent.

Wow it stopped the water pipes banging

Exactly the same terrible banging from one hot tap before and after fitting. Complete waste of money.

I needed something to stop the 'hydraulic shock' caused by shutting the lever tap in my kitchen from working the fridge plumbing loose. After 9 months, the 1/4" plastic push fit tubing had popped out from the filter and flooded under the kitchen cabinets.Seems like this will do the job, but it was a s*d to fit it, without leaks. The pieces come unassembled and the threads on the bottom of the vessel and inside the brass T-piece are not tapered. Thus, there's no seal whatsoever - unless copious quantities of PTFE tape are used when screwing it together. After 3 attempts, and thoroughly WODGING it with tape, I think I've cured the leak. Also slathered a metric butt-load of Fernox plumbers putty all over the joint for good measure.Part of the problem is that the hex nut on the bottom of the vessel is so narrow that I can't get any of my spanners on it, to tighten it down. Hence, I could only do it hand-tight. Would have to buy a 23mm narrow spanner to torque it down good and hard - but still, there's no actual seal between the two threads or mating faces. Really, there aren't any mating faces.