Best Water Filtration in Tempe AZ

I flushed my Rinnai tankless water heater per manufactures instructions and ended up with no hot water this weekend. I am contractor myself and tried everything I could to fix it on my own with absolutely no luck. Finally on a Sunday evening after trying to convince my wife that a cold shower is a good thing :-) I caved and called API expecting to leave a message and I was shocked when Rick called me back before I had the chance. Rick was great, I explained what I did and he came out and fixed it in under an hour! Extremely helpful and fair. I found them on Rinnai website and glad I did, thanks!