Hello everyone - I haven't posted a question in a while, but continue to read posts and learn new things from this forum. My pool liner and filter both have to be replaced this year and I am using the company who did the last liner replacement and also installed the pool 20+ years ago. I have had a Hayward DE Perflex filter since I've owned the house/pool and it has always done a great job. The pool company no longer uses/installs haywards and told me I should get the Pentair FNS Plus 60. My existing pump is a Hayward which is not being replaced. Two questions - how difficult is the Pentair DE filter to clean/backwash, etc? Will Hayward pump work okay with a Pentair Filter? Thanks in advance!