That was my main concern with buying from a grocery store.

I'll have to look into this a little further. Thanks for the suggestion :wink:

you could still get a Ro/Di unit, all u need is a male screw on fitting on your sink tap. You could just setup your ro system whenever u needed water, and then just keep a 5 gal jug full so that u dont have to pull out your ro system that often. Then just store it when your not using it. but if u did go this route your supposed to let the ro unit run for about 20 minutes to get rid of any built up nitrates from sitting stagnant.

Richard

Another source could be in your laundry room. In my old house I tee'd off the source for the washing machine and added a tap.

I just tossed my unit in the bathroom in a cupboard, you can tie it in so it's a low profile (trust me, we have NO room) and it'll pay for itself in a few water changes - never need to go for expensive bottled drinking water again!!

110 bucks is a small, small price to pay!

I buy water from Superstore. I've been considering going to a water specific store, but just haven't bothered yet. I have bubble algae, and the usual filmy algae on the glass every few days....but nothing outrageous.

It's $10 down payment for each bottle, but less than $5 for the actual water (about 5 gallons, I think).

How often do you siphon out the crap that accumulates in the bottom of your tank? I've noticed if I don't do that regularly (several times a week at least), things start to get cruddy. Also, in response to all the stuff at the bottom of your tank....mine seems like that, too. The live rock breaks apart slowly, it seems, and there are deposits of sand on the bottom of my tank.

Well I must give credit where credit is due.....I overheard a sales guy at Big Als telling a customer this the other day and it actualy made sense....

he said to do water changes with tap water and just use RO for topups.....this was for a larger tank for sure but his argument was that yes you would gain some minerals etc frrom your water change but at least by toping up with RO the minerals weren't building up in the system....

I mentioned before that I buy my water from Superstore. If you decided to go that route, they do sell two kinds. One of them guarantees >10ppm, which is pretty good to me! And refilling those 5G jugs costs around $3.

wow thats good..my RO filter water comes out at 14

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I too have been pondering the pros and cons of RODi versus tap water lately. Yes, there are cons to RoDi water, it is totally void of any minerality. That is a good thing right? Maybe, maybe not.

The RO water is void of minerals, but the salt ADDS those minerals back into the water - and it's only the good minerals it adds, not any of the bad stuff.

For FW, RO isn't a positive option, due to the fact that you're not adding anything in the form of supplements. But for SW, with the salt providing the nutrients, using Tap Water (from my understanding) is an overload of nutrients.

Adidas - TDS is 14 after RO? What is the rating on your tap water? When was the last time you replaced your membrane?