# White Austin rock with black stains? **URL:** \ **Category:** Uncategorized\ **Created:** [October 14, 2017, 6:57pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824 "2017-10-14T18:57:38Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [October 14, 2017, 6:57pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/1 "2017-10-14T18:57:38Z")
Hey folks, I’m on this project and I cannot for the life of me get this black stuff to go away. I’ve tried downstreaming 12.5% sh with eliminator, I hit it with pressure and yet it’s still there! I’m about to get a ladder and apply the sh straight to each rock… What do yall think? ![C0B89219-5C67-4585-B825-13A4840849CC](https://pressurewashingresource.com/community/uploads/default/original/2X/1/158d3a7f839b7c354dd1e79107c91b98cd92516c.jpeg) ![FE9F2D54-0DF2-4E86-AF9D-FD5A9AC51FCA](https://pressurewashingresource.com/community/uploads/default/original/2X/9/988916e02c98a70ba3055c09e74c446a4a587585.jpeg) ---
**Author:** ![Ikii](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/ikii/32/6850_2.png) [@Ikii](https://pressurewashingresource.com/community/u/Ikii)\ **Post date:** [October 14, 2017, 11:08pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/2 "2017-10-14T23:08:55Z")
Hot water…i keep telling you guys. ---
**Author:** ![Sharpe](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/sharpe/32/30159_2.png) [@Sharpe](https://pressurewashingresource.com/community/u/Sharpe)\ **Post date:** [October 15, 2017, 12:56am UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/3 "2017-10-15T00:56:57Z")
I NEED AN ADULT @Innocentbystander ---
**Author:** ![bluewave18ft](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/b/8797f3/32.png) [@bluewave18ft](https://pressurewashingresource.com/community/u/bluewave18ft)\ **Post date:** [October 15, 2017, 4:51am UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/4 "2017-10-15T04:51:56Z")
It’s limestone. I don’t get why sh won’t handle it ---
**Author:** ![dperez](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/dperez/32/21232_2.png) [@dperez](https://pressurewashingresource.com/community/u/dperez)\ **Post date:** [October 15, 2017, 2:12pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/5 "2017-10-15T14:12:12Z")
Yeah bro you’re on the right track. You just need more SH hiting the surface. You can “pump up” but it’s best to have a dedicated chem pump for stuff like that. ![20160514_113219](https://pressurewashingresource.com/community/uploads/default/original/2X/b/b4e89bdf2e56f9625d97c8485a3c2411441e76fc.jpeg) ![20160514_115517-1](https://pressurewashingresource.com/community/uploads/default/original/2X/7/702846df29a0e6ca2f26cd01f4beef054c191450.jpg) That stone is very porous and roots run deep. If it’s already been saturated it will need time to dry from within so it can soak up more chem. ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [October 15, 2017, 4:41pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/6 "2017-10-15T16:41:44Z")
Awesome! Thank you. I dont think i was letting it dry enough, and I dont thin think I had enough eliminator. I’ve got a pump up I’ll have to use a ladder and apply it directly… downstreaming it just isn’t getting the job done… should’ve charged more hahaha ---
**Author:** ![DoubleH](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/doubleh/32/18953_2.png) [@DoubleH](https://pressurewashingresource.com/community/u/DoubleH)\ **Post date:** [October 15, 2017, 9:32pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/7 "2017-10-15T21:32:03Z")
Lesson learned. Roof mix (50-50) should have taken care of it ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [October 16, 2017, 5:18pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/8 "2017-10-16T17:18:58Z")
Thats how I set it up, and barely did a thing. Going back this week with a pump up and hitting it with straight sh with eliminator. It worked on the bottom half that I could reach and the mailbox. Apparently it’s been there for several years. Lesson is I should’ve charged more. Oh well! ---
**Author:** ![bluewave18ft](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/b/8797f3/32.png) [@bluewave18ft](https://pressurewashingresource.com/community/u/bluewave18ft)\ **Post date:** [October 17, 2017, 1:22am UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/9 "2017-10-17T01:22:07Z")
I’m not sure you needed to charge more. It might be that you needed the right equipment. Either a 12v pump from a mix tank or an x jet would take care of that in a jiffy and neither are expensive ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [October 17, 2017, 10:53pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/10 "2017-10-17T22:53:22Z")
Yeah I’m looking into an xjet currently. My downstream setup is not getting it done. ---
**Author:** ![bryananders9](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/bryananders9/32/15728_2.png) [@bryananders9](https://pressurewashingresource.com/community/u/bryananders9)\ **Post date:** [October 17, 2017, 11:09pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/11 "2017-10-17T23:09:45Z")
Check out the m5ds for your downstream set up and the xjet m5 when you need to use a stronger mix but keep the ds set up because your not going to like carrying xpail or bucket all around ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [October 18, 2017, 7:29pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/12 "2017-10-18T19:29:02Z")
![72F2A985-ED0E-4708-A954-D202DC49BDCB](https://pressurewashingresource.com/community/uploads/default/original/2X/a/a0cede053584123204c24b12544b52d6c92bba96.jpeg) Hand sprayer and a ladder worked miracles… time for an xjet! ---
**Author:** ![JBreezy](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/j/3be4f8/32.png) [@JBreezy](https://pressurewashingresource.com/community/u/JBreezy)\ **Post date:** [October 18, 2017, 7:45pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/13 "2017-10-18T19:45:47Z")
Looks really nice now! ---
**Author:** ![Roaddogtx](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/roaddogtx/32/5911_2.png) [@Roaddogtx](https://pressurewashingresource.com/community/u/Roaddogtx)\ **Post date:** [October 18, 2017, 7:50pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/14 "2017-10-18T19:50:39Z")
Black mold at leg level 50/50 pump up , any higher X-jet. ---
**Author:** ![Sharpe](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/sharpe/32/30159_2.png) [@Sharpe](https://pressurewashingresource.com/community/u/Sharpe)\ **Post date:** [October 18, 2017, 11:27pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/15 "2017-10-18T23:27:56Z")
Came out nice! ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [November 12, 2017, 8:41pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/16 "2017-11-12T20:41:41Z")
Honestly I used straight 12.5 with eliminator. Only had to do one pass, rinsed and it all melted off… my down stream I’m coming to find is a REAL pain… all my equipment i run cleaner thru and my stuff is still corroded and cracking. I just quit my full time job to do this full time, got super busy and now I’ve had to stop for a week while waiting on replacment parts. NOT happy about that. Xjet ASAP ---
**Author:** ![Innocentbystander](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/innocentbystander/32/36516_2.png) [@Innocentbystander](https://pressurewashingresource.com/community/u/Innocentbystander)\ **Post date:** [November 12, 2017, 8:56pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/17 "2017-11-12T20:56:43Z")
What is corroding and cracking? Typically a goid reel will last you 5 or 6 years. Other than that there should be nothing else that corrodes. Can’t picture anything cracking. Xjets are awesome for a couple of things but they slow down the wash process tremendously and use a lot of pressure compared to downstreaming ---
**Author:** ![Burj74](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/burj74/32/8062_2.png) [@Burj74](https://pressurewashingresource.com/community/u/Burj74)\ **Post date:** [November 12, 2017, 9:22pm UTC](https://pressurewashingresource.com/community/t/white-austin-rock-with-black-stains/9824/18 "2017-11-12T21:22:27Z")
My hoses are fine, its all my quick connects seizing, my wands and tips all turn white and I treat all parts with wd40 at the end of the day. ![image](https://pressurewashingresource.com/community/uploads/default/original/2X/f/f0d2a0b1ae288b91d07995ffd06ea246361b84e1.jpg)