my pool is about 2 years old now. it is a infinity pool. outside of the wall of the pool, the white color stuff started to emerge and it gets…

thanks. this is the engineer drawing. first pic is the red circled place and the 2nd pic is the blue circled place.

I have just had an upstairs addition project completed by a builder in Northern beaches (Sydney) in Dec 2020. I proceeded with the downstairs reno (with another builder) immediately after…