Finally identified the leak

[Deleted member 12539]

I'm a builder and we use ct1 when the hole is quite small and only for temp/ short term fixes. There is a product by cementone called Flexacryl Cementone Flexacryl - Instant waterproof compound this is great stuff for fixing flat roofs and even comes in white. It's a bit pricey for a small job but worth it.

That is three of us that like the CT1 stuff, Jen!! :bow:

 

[vwalan]

I'm a builder and we use ct1 when the hole is quite small and only for temp/ short term fixes. There is a product by cementone called Flexacryl Cementone Flexacryl - Instant waterproof compound this is great stuff for fixing flat roofs and even comes in white. It's a bit pricey for a small job but worth it.

thats the stuff i mentioned .works a treat . spread it on thick . should last years . can always add more .