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Old 04-23-2012, 10:45 PM   #1
TheTallOne
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Default Ahhh the things I do for my Subaru!

So I've been battling water spots for years now. My wife does her best to dry the car, but well.....yeah. It's a dark car so every little drop leaves a spot that is very noticable to me. I've got well water here, it is great for drinking but hard as hell, which means it leaves terrible water spots. I measured my hardness based on the ppm scale (parts per million) using a TDS meter. The standard is 0-60ppm soft, 61-120ppm moderately hard, 121-180ppm hard, 181+ppm very hard. My water is 216ppm! Initially I considered a typical home water softening unit. However, these use salt which simply can't be good for the paint. Salt does tend to be corrosive lol.

Below is my fix. My Subaru is now ONLY washed with 0ppm water. Doesn't get any better than that.

Explanation: Reverse Osmosis 4 stage water filtration system with a 20gal resivor tank featuring a 1600gph pump.

Take that water spots! (extra bonus: wife quit whining about having to dry the car)


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Old 04-24-2012, 01:15 AM   #2
shawns_sick_STi
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I have one of those water softener systems and the salt is only used to clean out the carbon filter, not soften the water. I use the house water to was the cars and it leaves a spot free car without drying. But cool set up you got there!
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Old 04-24-2012, 02:32 AM   #3
overdrivex
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Quote:
Originally Posted by shawns_sick_STi View Post
I have one of those water softener systems and the salt is only used to clean out the carbon filter, not soften the water. I use the house water to was the cars and it leaves a spot free car without drying. But cool set up you got there!
yup my families coffee shop had a water softening system in it and the rock salt is only used to flush out the system
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Old 04-24-2012, 04:56 AM   #4
prototypeWRX
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Yeah the only time you might notice just a small (very minor, and for very little time) amount of salt is the first time you use your water after the softener does it's filter clean/flush cycle. Which I think is why some people choose to use potassium instead of salt, among other reasons. Most modern softeners support the use of either.
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Old 04-24-2012, 06:02 AM   #5
oceanwater48
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thefilterguys.com or .org, i forgot.
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Old 04-24-2012, 08:43 AM   #6
TheTallOne
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Guess I should have looked into the softeners more, oh well. I don't plan on living in my current house much longer anyway, the ro unit is cheaper and easier to move I'm sure.
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Old 04-24-2012, 09:08 AM   #7
WRXwife
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I think it really comes down to: it amused him to build this. He can never go the simple and effective route. Ever. LOL.

But what's really really important is, I don't have to dry the car......as much. He still insists on moderate, but not psycho meticulous, drying.
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Old 04-24-2012, 12:39 PM   #8
wrx_02
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Quote:
Originally Posted by WRXwife View Post
I think it really comes down to: it amused him to build this. He can never go the simple and effective route. Ever. LOL.

But what's really really important is, I don't have to dry the car......as much. He still insists on moderate, but not psycho meticulous, drying.

This is great^^^^
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Old 04-24-2012, 12:44 PM   #9
scubie33
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thefilterguys.com or .org, i forgot.
.biz
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Old 04-24-2012, 01:20 PM   #10
ExchangeGuy
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A family that washes together, dries together....
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Old 04-24-2012, 01:40 PM   #11
JbibWrx
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How much for ro kit shipped to north Dallas when you move?
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Old 04-24-2012, 01:44 PM   #12
Spider Pig
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Originally Posted by JbibWrx View Post
How much for ro kit shipped to north Dallas when you move?
You can actually put one together from Home Depot for pretty cheap. I had a bunch of customers use the under the sink reverse osmosis kits for the same purpose, and those aren't pricey at all.

I think they run from $250-$300.
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Old 04-24-2012, 02:02 PM   #13
wrx_02
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You can actually put one together from Home Depot for pretty cheap. I had a bunch of customers use the under the sink reverse osmosis kits for the same purpose, and those aren't pricey at all.

I think they run from $250-$300.

You work at HD? If so I am sorry, I use to work in the orange box.
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Old 04-24-2012, 02:20 PM   #14
TheTallOne
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I'll be taking the Reverse Osmosis filter with me when I move. The 5 stage 75 gpd(gallons per day) RO filter was $130, booster pump $75, water pump 1600 gph(gallons per hour) $65, 20 gallon water tank $15, float valve $8, 60 feet of tubing $20, 50 foot water hose and nozzle $40.
Total $353

The booster pump isn't needed with most city water cases. I needed it due to low well water pressure, 35-40 psi. City water pressure is typically 60 psi which is ideal for ro filters.

Home Depot ro units work but are smaller, 40 gpd, 2-3 stages etc. They are made to supply a 1 gallon water tank for drinking, not the best for what I am doing. Plus they are more expensive there than online.

Looked into the softeners a little, appears average ppm(parts per million) of processed water with these systems is 100 ppm. I like my 0 ppm better. And for $50 a year, can't beat it.

Air dry a dark grey metallic car? Hell yea!

Last edited by TheTallOne; 04-24-2012 at 02:26 PM.
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Old 04-24-2012, 02:32 PM   #15
Spider Pig
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Originally Posted by wrx_02 View Post
You work at HD? If so I am sorry, I use to work in the orange box.
No, I used to a few years back. It was great for a year. And then ****ty for the two that followed when I made assistant manager.
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Old 04-24-2012, 03:03 PM   #16
wrx_02
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No, I used to a few years back. It was great for a year. And then ****ty for the two that followed when I made assistant manager.

Yeah me to. Good thing I use to work there so I know where everything is now cause good luck getting help now.

On a side note couldn't one just get a Brita filter? It would take a long time but.........
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Old 04-24-2012, 03:45 PM   #17
TheTallOne
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Brita filters are mainly carbon based, meaning they primarily remove pharmaceuticals that cause odor and taste. The under sink brita filter in my kitchen reduced the ppm from 216 to 201, not much.

"In a Brita® Faucet filter, there is a two-step process. When you turn on your tap, water first passes through a non-woven screen around the filter to trap sediment. Then, the water then flows through a compressed block of carbon and zeolite, reducing chlorine (for taste and odor) and lead." Brita.com

"Because of its lower mineral content, reverse osmosis water is often used in car washes during the final vehicle rinse to prevent water spotting on the vehicle. Reverse osmosis water also enables the car wash operator to reduce the demands on the vehicle drying equipment, such as air blowers." Wikipedia
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Old 04-25-2012, 11:15 PM   #18
Black07Sleeper
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Quote:
Originally Posted by WRXwife View Post
I think it really comes down to: it amused him to build this. He can never go the simple and effective route. Ever. LOL.

But what's really really important is, I don't have to dry the car......as much. He still insists on moderate, but not psycho meticulous, drying.
Ahhh..... love..... you guys are awesome
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Old 04-26-2012, 12:11 PM   #19
Koiracer
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Have you tried the window trick?
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Old 04-26-2012, 08:12 PM   #20
WRXwife
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Not yet, got busy with school & job stuff. I plan on doing it tomorrow night.
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Old 04-26-2012, 08:27 PM   #21
speakerpimp
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Now that's love!!!!!!!!!
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Old 04-27-2012, 01:18 AM   #22
ajg10730
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Quote:
Originally Posted by wrx_02

You work at HD? If so I am sorry, I use to work in the orange box.
I use to work there also. I hate it with passion!!!!!!!
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Old 04-28-2012, 01:20 AM   #23
blakkboxer
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this is sick. can i haz?
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Old 04-28-2012, 11:08 AM   #24
m_clark54
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Most city water providers will have their water quality posted on their websites. They also email customers the water survey every 5 years I believe. TCEQ, and AWA, will also have what's supposed to be in your water and what's not. As well as standards for each level.

That way you can determine if that process is right choice for you.

Most can agree though that the water from an RO element is better overall for consumption. Most bottling companies and water mill locations use a system like that. As do car washes for spotless wash.
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Old 02-19-2014, 01:57 PM   #25
TheTallOne
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