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Old 04-07-2021, 09:32 AM   #5
clyde
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Join Date: Oct 2003
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Quote:
Originally Posted by Josh (PA) View Post
This is something i just found, that seems to work well at eliminating water spots at the last rinse:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I'm not sure how many washes I'll get out of it, but I put it between the hose and nozzle for my final rinse and did not that water spotting was significantly down.
Somewhere in the description/questions/comments, I saw something about 500 gallons.

This guy didn't seem to think it was a good bet for eliminating water spots:
Quote:
Originally Posted by some guy named "Greg" on amazon
[I purchased this to produce a spotless rinse while cleaning cars but ran some tests on the filter. Long story short, it didn't work out. Here's how I tested:

After receiving the filter, I attached to my water spigot and purged for 2 minutes. I took glass 1, rinsed and filled the glass with filtered water. I removed the filter again and filled glass 2 with tap water. Examined 3 areas:

1) VISUAL: Both tap water and filtered water appeared clear or colors or sediment. PASS

2) TASTE: The filtered water had slightly less taste, but hardly noticeable: BARELY PASS

3) TDS metering: I bought a "Total Dissolved Solids" meter than measures purity. (ex. tap water: 100-400ppm - Distilled water: 0ppm). My tap water measured at 402 ppm, but the filtered water came in at 442ppm!! What?? The filtered water came in LESS pure?

Most likely the higher TDS rating likely came from harmless excess sediment from
the carbon filter. It appears these carbon filters are designed to only filter out non TDS solids (ex converting gross well/hose water into more pleasant drinking water).

OVERALL: These may still be good for converting clean hose water into something more palatable for RVs, but certainly not for creating a spot-free rinse. I don’t think any carbon filter can obtain a low TDS (spot-free) rinse. If that’s what you’re looking for, your remaining options are likely either triple osmosis or distilled.
Water spots have become relevant to me. I never had an issue on the gray Camaro, but have noticed them the last two washes on the orange car despite using the same big ass and waffleweave drying towel process on both cars. It was not a problem with earlier washes of the orange car, but I had to replace the hose recently, and that's the only thing I can think of unless the water authority made some changes.
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