If your water bill suddenly seems rather high, this could well be the culprit. The good news is, it is pretty easy to fix.
Al now has an Amazon affiliate shop for plumbing parts and tools at www.amazon.co.uk/shop/dereton33
Saved some money on plumbers fees? Use the thanks button.
Or through Paypal using my site link https://www.dereton33.com/page118.html
Many thanks Al.