I am looking to upgrade our intex ultra 20x48 not after 3 years a pole has rusted significantly compromising the structural integrity.
Here is the pool I am looking at
www.thepoolfactory.com
The main question is that salt water generator is rated at 20000 gallons when my pool would be 17000 gallons. From research it seems too small even though the company is confident that this will work fine. I have never had a salt water pool so dont want to screw this up especially when it will all be new.
For 300 additional I can upgrade to this but this is only rated at 25k gallons
www.thepoolfactory.com
for 400 additional I can upgrade to this which is almost double at 30k gallons for 400 more.
www.thepoolfactory.com
Should I spent the additional 400 and get the 30k gallon model?
Secondly the filter I am going with is not a sand filter but a 190sqft cartridge filter. I an upgrade to a 250sqft cartridge filter with same 2hp 2 speed pump for an additional $50 bucks. Is bigger better in this case?
The second question is I plan on installing this myself. I was leading toward a sand floor as its what I installed previously at the old house. They recommend the floor pad which is $150 and the foam edging which is $110. When I installed previously I just made the cove from the sand and had no issues. I would rather save some money and not use the foam floor if possible.
The third question is they are recommending a digital salt tester for $110 dollars. I see online their are other strips/test kits that are available. Would the digital tester be the preferred way to test the salt? I am assuming I would need some opening kit that will come with the initial salt needed.
thanks so much for all the help in advance
Here is the pool I am looking at

27'x52
Saltwater 5000 Round Pool is one of our best above ground pools. It includes a skimmer, blue liner & service panel for superior corrosion protection.

The main question is that salt water generator is rated at 20000 gallons when my pool would be 17000 gallons. From research it seems too small even though the company is confident that this will work fine. I have never had a salt water pool so dont want to screw this up especially when it will all be new.
For 300 additional I can upgrade to this but this is only rated at 25k gallons

Solaxx Retro Jet RJ Salt Chlorine Generator System
Our Solaxx Saltron Retro Jet Saltwater Chlorine Generator is a self-contained purification system that utilizes a natural process to generate pure chlorine.

for 400 additional I can upgrade to this which is almost double at 30k gallons for 400 more.

Solaxx Saltron Reliant Salt Chlorine Generator System Up to 30,000 Gallons
Buy a Solaxx Saltron Reliant Saltwater Chlorine Generator, suitable for pools up to 30,000 gallons. Made in the U.S.A by Solaxx.

Should I spent the additional 400 and get the 30k gallon model?
Secondly the filter I am going with is not a sand filter but a 190sqft cartridge filter. I an upgrade to a 250sqft cartridge filter with same 2hp 2 speed pump for an additional $50 bucks. Is bigger better in this case?
The second question is I plan on installing this myself. I was leading toward a sand floor as its what I installed previously at the old house. They recommend the floor pad which is $150 and the foam edging which is $110. When I installed previously I just made the cove from the sand and had no issues. I would rather save some money and not use the foam floor if possible.
The third question is they are recommending a digital salt tester for $110 dollars. I see online their are other strips/test kits that are available. Would the digital tester be the preferred way to test the salt? I am assuming I would need some opening kit that will come with the initial salt needed.
thanks so much for all the help in advance