I recently purchased a home. I have a Shasta pool with a Hayword filter system. The Pop up's and actuator have been removed previous to me owning the home. I do not wish to re install a new system. I use the QuikClean Style 1 pop ups and 6 port 1.5" Actuator. I purchased a pool cleaner that I am happy with. My plaster is in good condition. Is there any way to cover the holes with vents or modified caps ? I only have two zones plumbed for return at this time and a total of 19 missing pop up's.