Hello. Sounds more like a PVC plumbing problem but it is connected (literally) to the drains all around the pool deck.
I have half a dozen of these type of drains
The last one, lowest in elevation on the chain, is connected to a PVC segment that at some point drained to the sidewalk at the front of the house. It is now clogged.
I am trying to locate this PVC segment, so I can dig, and decide if a roto-rooter would work or if I cut it and connect to another segment which is unclogged and working good.
Unfortunately I cannot use a roto-rooter snake long enough from the last drain because they installed them with 90degree T junctions, instead of long curved elbows, the cable will not bend and spin at a 90degree angle. The drain king balloon of the proper size does not bend either.
I found such a thing like radar emitters that go into the pipe and a sensor above ground follows the signal, but it may be up to $200 just for the rental and technician.