Edwards and Hardy?

k1w1k1d:

 

Edwards and Hardy?

 

Thanks, will look into.

We used chemwash recently for this [https://chemwash.co.nz/]; they also hand-cleaned a couple of skylights for us whilst they were there.

k1w1k1d:

 

Edwards and Hardy?

 

I used them last year, it came off faster than the many months they get quoted

I also bought 2 containers of concentrate for a few jobs around the property, that stuff rocks