I buy RO water at Hannaford Supermarket

[Bobbofin]

I have been buying my RO water at Hannaford Supermarkets. Almost every store has a water WaterVend machine. The water is $.30/gallon. I had it tested several times a while back. It tested out at less than 20tds each time. I have zoos and lps in my tank and I don't do sps so this works out fine.
The machines are serviced monthly and they run the water through sediment, carbon, RO membrane then UV during dispensing.

 

[MAReefer1]

why would it be a problem If you had SPS?

 

[Scuba_Dave]

SPS generally "want" cleaner water
Cleaner water = better light = better growth

 

[willray]

Careful! I checked the one in Lunenburg a few months a go and TDS was over 150.

 

[RichConley]

Whats the TDS of tap in NH anyways? I was getting 30-40 in boston, so paying for 20 seems ludacris to me.