Clicking stack

[Madrab]

Here's a head scratcher - Clicking soil stack.

New bathroom, corner stack and the capping of one waste pipe and re-purposing another - all of a sudden the soil stack now starts to click when hot water flows into it. I am aware it's expansion with the HW hitting the stack but no matter what I do, splitting the stack and grease the seals - galvy band the stack to secure it (it's internal to the upper bathroom/kitchen) nothing stops it

In many many years, only had this once before with another clients house and given it's was boxed in the client just decided to live with it. Outwith removing it all and replacing with solvent weld (if this would actually work), any of the most excellent bods on here got any other ideas?

Typically it had to happen in my own place

 

[Nige F]

If it's touching wood anywhere- soak with silicone spray. And check for death watch beetle

 

[Madrab]

If it's touching wood anywhere- soak with silicone spray

It's not unfortunately, I even used 2 foam covered wooden batons to square the stack in the void to keep it centralised but alas.

 

[roguetrader]

Slide some hair felt lagging over the galv band.

 

[Madrab]

Slide some hair felt lagging over the galv band.

The banding has some foam around it too (opened up pipe insulation) but it was clicking before I added the banding and I added it to see if the extra support would stop the clicking, unfortunately it hasn't helped.

 

[screamer]

Above my kitchen ceiling i thought i heard a dripping sound.
I stayed in the house for 20 years, just before selling it i thought i needed to investigate it, turned out the bath waste went into a soil pipe in the ceiling space, it was the hot water from the bath/basin expanding the soil pipe against some bracing in the roof space.

Put some neoprene rubber between them and patched up the ceiling.

 

[polesapart]

Soil pipe suspended from clip with a cm or so above full insertion from socket end below or resting on lower socketed end?

 

[Hugh Jaleak]

Stack from upstairs bathroom in my Parents house always clicked, didnt even need hot water, flushing the WC used to set it off. Drops down right in the corner of the Hallway too, next to the front door. Never did work out why it did it, think it's stopped now they've changed the WC.