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Categories > Mend D.I.Y, Plumbing > Question
Q & As - mend, repair, fix d.i.y, plumbing, water, pipe, leak, flood, cold water, hot water, copper pipe, pressureNavigate to ...
D.I.Y, Plumbing (4196 other questions)
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should my Worcester junior have grey sand in DHW CAP? ?

hi all my Worcester junior had grey sand in its dhw cap, which i knocked off by accident, since then it has a leak in it as no sand, do i need to replace sand or is it just that i dont have a tight seal on cap?

June 2020

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Answers - mend, repair, fix

Can you explain exactly where this "DHW cap" was? Was it underneath or on the flue pipe on top?
I can assure you that grey sand is not something that should be added to your boiler! What you may be looking at is a build up of limescale in the pipes or contamination in the flue.
My personal feeling is that, simply by asking if you should add sand to your boiler, you are in grave danger of attempting a repair that could put you and your family in danger. Please call a qualified Gas Safe engineer to perform the correct repair and give your boiler it's long overdue service.

June 2020

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