Sorry in advance for my lack of knowledge of what I am about to ask. Along the waterline tile I have 2 different holes and I have no idea what they are for. They stick out like a sore thumb but I'm sure they serve an important purpose.
Pool built 1989
Auto fill feature
First picture is on one end of the pool (not auto fill area) it has a female end. Is this purpose in case the pool overfills we attach a hose and empty?
2nd picture is on other end of pool and the hole is near the autofill area (autofill is like toilet bowl type) what is the purpose of this hole that is cut out on tile?
Thanks I advance for any info