Hello everyone ... 2 year lurker and first time poster here.
I bought a house with an existing pool two years and stumbled on this site and have learned enough that i believe next year i will take the plunge and become a BBB convert. I started off using Sustain and have had good results but as you all know it is a wee tad pricey
In the meantime i have a quick question. Two years ago i paid a guy to close the pool and watched him. Last year my brother and i did it with him directing and me doing the work (he owned a pool for many years) and had no trouble.
This year i have been planning on doing it myself... ran through several online guides etc and feel very comfortable of the steps and process to get things done.
Of course i have an issue ...... when i am blowing out the main drain and close the valve it appears that the bubbles continue to flow out even though the valve is closed before i shut the compressor off ... it appears that air is still coming out of the skimmer when i blow it out ....... i was under the impression that once i shut the valve there would be an air lock ... but if i still see bubbles coming out wouldnt that mean water could leak back in?? Is it possible the valves are old and shot?? .. It is a 30 year old pool and i did have intermittent issues getting good suction with the vacuum this year.
Outside of this i am very comfortable and confident doing the rest .... but these could obviously cause some major problems so i need to get some answers or call a pro.
Thanks in advance