Re: Washing machine - waste pipe limescale



Replace the pipe and re-install with a sharper fall to the main stack. Is the end of the pipe vented? Or is a spring operated valve used and end capped off?
--
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com ).
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I'd use vinegar, preferably a strong pickling vinegar, heating it before pouring it in. Or maybe a commercial kettle de-scaling product that doesn't need boiling.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Gerry Smith wrote:

Taking lots of care, you can use hydrochloric acid as sold by swimming pool suppliers. Dilute from the supplied concentration to between 5 & 10%. Allow for the level to foam up and have a bucket of water handy to dilute any spills and overflows.
None of the common acids you will be able to buy will eat through PVC pipes
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.