Guys. GUys. GUYS! OVER HERE.

Yes 3 x 9 mat was too small. I paid for a 4 x 20 and it came 3 x 9 out of the box so they gave me another one. I'm not sure if all mats actually measured smaller than advertised, wouldn't surprise me. This year I'm adding the new 4 x 20, but the manual does not suggest parallel for some reason as you can see from the link. What's up with that?

http://smartpool.com/website/sunheat...%20English.pdf

Also, why is a 1.5hp too much pump for my pool?

Shelley