thank you!! I am thinking I will go with the DE filter. Unfortunately, the pool company I have a contract with to replace the liner (loop-loc brand) and install the SWG and the slide and a new pump (written on the contract as a Tristar VS, but can upgrade it to the Ecostar VS for +$200) is charging me $75 less for the DE filter vs. the cartridge filter. I really do not want to add a 2nd pool company into the mix to do the filter install.

The C7030 looks like it uses 8 cartridges, so that is really one of the biggest things that is making me think I will just do the DE 7220. The previous setup was a DE (4800) filter and it had a multiport that is still in good condition, so I will be using it and not have to purchase one at this moment.

Do you think I am fine with the tristar vs or upgrade to the ecostar vs for +$200?

thank you!!!!