Tomorrow I'm going to get the water checked pretty thoroughly at the college where I work. We have an Environmental Studies department that has a whole water test lab and, from what I gather, some pretty extensive testing capabilities. The professor who runs that lab is going to meet me there tomorrow at 10 AM so we can figure out as much about my water as possible.
Time permitting, I was hoping to test and compare these sources:
- Straight well water in the room that is feeding the RO
- Water I processed with the old membrane that is standing in a clean trashcan I use for holding water I intend to mix with salt (both for the quality of the old membrane AND for the trashcan to make sure it's safe)
- Water coming out of the new membrane (it's running for a few hours now down the drain to flush the new membrane of packaging solutions, so it will be ready tomorrow to sample straight from the blue hose)
- Water coming out of our kitchen tap (more for our own knowledge than anything since I don't plan to use this tap whatever the case)
What I can say from my own cheap-o tests (Sera and Aquarium Pharmaceuticals kits I own) is that the RO
does a decent job on what I can test.
The water from the tap in that room has an almost undectable level of copper while the water from the RO
is clear as a bell on the copper test. Our kitchen sink, however, is friggin' brown on the copper test color (but the Pur pitcher we use makes it virtually clear on par with the RO
). Obviously, there are copper pipes feeding it. I think the bathroom is older galvanized stuff.
The water from the tap in that room has nitrates in the freshwater 10 ppm
range or so. The RO
water appears to check out as measurably zero.
The water from the RO
measures VERY low (between zero and the first test chart color) on phosphates. I forgot if it was any worse on the tap, but I suspect so to some extent.
What I won't know tonight (but hopefully tomorrow) is TDS
, lead or other minerals, whatever else I don't know to look for and probably more accurate versions of much of the same.
I have a handheld digital TDS
meter on the way for future use.
Can anyone suggest tests that might be possible tomorrow that I should ask about or focus on? What is especially important for the performance of my RO
so I can be comfortable with this being my new water source (sick of buying water in jugs)?