×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Scale Build Up in PVC Water Network

Scale Build Up in PVC Water Network

Scale Build Up in PVC Water Network

(OP)
Does anyone know of any cleaning method high levels of scale build up in a PVC water network. Currently the team leaves the pipes unglued and cleans them manually but this is far from satisfactory (or sanitary). If a product is needed (I'm assumng some sort of acid would break down the limescale) are there any that are certified for potable drinking water? Thanks in advance.

RE: Scale Build Up in PVC Water Network

What do you mean by unglued?

What type of water network is this?

What is the water analysis?

RE: Scale Build Up in PVC Water Network

If this is for a lime feed system at a waterplant, there is not good solution.  The best is to place the lime feeders directly above the point of injection.  Other solutions I've seen and used are:

1.    Open troughs flowing by gravity that can be cleaned manually.

2.    Flexible hose in break apart sections that can be hit with a mallet to flex and break the buildup off.  Note this only partially works.  The hoses end up being replaced with a clean section so the old one can be flushed and placed in an acid bath to eat the lime out.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources