I have a poured concrete pool painted with chlorinated rubber paint. The pool was built in 1965 and has had a few rounds of wall repairs through its life. The main drain is an old metallic drain that is deteriorating and I am planning on replacing it with two new drains. I have read an old thread on TFP where someone did this on a gunite/plaster pool, but it is an old thread. I am concerned about the size of the cuts and space around the drains and pipe to allow for a solid and durable patch. I was planning on using a latex admix with the concrete, but I have also read that hydraulic cement should be used for this type of project. In the old thread, the poster used SGM Bond Kote as a bonding agent. I have never used this, but this looks like a cement-based skim coat product for lack of a better term. From the size of the holes and channels, I would have to brush this on the exposed concrete and rebar. Not sure if this is a proper way to apply this product. Any words of wisdom or advice would be appreciated.