PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram
Search the site

 

Download our free e-book! Overcoating bridges and other structures.

Problem Solving Forum

| More

October 24 - November 1, 2015

How pure must fresh water be for water washing or waterjetting, and how do you determine the water’s purity?

More items for Surface Preparation


Selected Answers

From OM PRAKASH JAT of TECH INTERNATIONAL SHARJAH HAMRIAH UAE. on December 22, 2015:
Potable water can be used for water jetting. .If there is any salt or contamination in the water, it will not adhere to the surface during operation.

From Marco Antonio Alvarado Meneses of Sherwin Williams Perú on December 1, 2015:
Potable water is ok, that's all.

From SAUL DIAZ VERA of CPPQ S.A. on November 1, 2015:
The water should be clean and free of contaminants. Fresh pure water must be less than 1000 microsiemens, with low chloride and sulfate ions. The pH must be close to 7.

From Lydia Frenzel of Advisory Council on October 29, 2015:
I just posted on 2015-10-29 a collection of tables concerning the quality of water for use in high pressure pumps on flashrust.org, waterjetting.org and advisorycouncil.org It includes surfblasting as well as tables suggested by the pump manufacturers themselves. Use filtered potable water as a general rule. The pump manufacturers are concerned with the maximum service life for the pump and the tips. Andreas Momber discusses water quality for surface preparation in his book, "Hydroblasting and Coating of Steel Structures," p. 48. “For running high-pressure plunger pumps reliably and for achieving a maximum service life, pump manufacturers recommend drinking water quality….. But if suitable filter and cleaning arrangements are applied, even river water or seawater can be used. Recommended filter size depends on the sealing system as well as on the operating pressure.”

From trevor neale of TF Warren Group on October 28, 2015:
Can distilled water be classed as fresh !!

From Mark Schilling on August 30, 2012:
     It's a goofy question subject to all sorts of misinterpretations and exaggerations. What exactly is "fresh" water? What does "purity" really mean? Some people will no doubt over-emphasize chloride ion, supposedly the most nefarious and dangerous thing in the coatings cosmos. National drinking water regulations currently set the limit for chloride ion at 250 mg/L with a total TDS limit of 500 mg/L. I sold a house that was on a water well. I had to have the well tested before I could sell the home. The pH was 8.6. Current regulations set the limits at pH 6.5 to 8.5. OOPS! Water quality is an extremely complicated issue. Only a salesman would want to distill this issue down and tell us how "pure" we need our wash water to be.

Please sign in to submit your answer this question    

Tagged categories: Waterjetting


Current PSF Question | Submit a PSF Question | Full PSF Archive

Advertisements
 
Harsco
 
Find BLACK BEAUTY® Abrasives
 
Use our online tool to search by address, city or zip code to find where you can buy BLACK BEAUTY® abrasives. Or call us toll free: 1-888-733-3646
 

 
Monti Tools, Inc.
 
BRISTLE BLASTER® – THE ORIGINAL ONE
 
  • Abrasive blast with a power tool
  • Remove corrosion, mill scale and coatings
  • Cleans & roughens
  • Meets SSPC-SP 10 / NACE No. 2
  • Profile up to 4.7 mils
  • ATEX Zone 1
  •  

     
    Advanced Recycling Systems
     
    ADVANCED RECYCLING SYSTEMS (ARS)
     
    Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
    (330)536-8210
     

     
    Atlantic Design, Inc.
     
    BUILDING INNOVATION, NOT IMITATION
     
    The smallest version of our Blast Vacuum Recyclers, this ADI 2300CFM 2-Pot is a cleverly designed power package for those smaller jobs. 866.Call.ADI
     

     
    Axxiom Manufacturing
     
    Schmidt Improves Conversion Kits
     
    Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters. Quick, easy to install with step by step instructions.
    Call 1-800-231-2085
     

     
    CHLOR*RID International Inc.
     
    SOLUTIONS THAT WORK
     
    Companies that invest in corrosion control use CHLOR RID products
    • Soluble salt removal liquid
    • Test kits to verify contamination levels
    • Surface passivation to hold the blast
    INFO@CHLOR-RID.COM 800.422.3217
     

     
    Montipower, Inc.
     
    The MBX Bristle Blaster
     
    Get a 2.7 to 3.3 mil profile and a Near White Metal Clean. For info visit www.mbxit.com or call 877 629-8777
     

     
    NLB Corporation
     
    NLB Sure Shroud: Greater Protection and Flexibility
     
    NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.
     

     
    Absolute Equipment/Grand Rental Station
     
    TIER 4 EQUIPMENT
     
    We have Tier 4 Equipment including Air Compressors & Generators for Sale & Rent! Your job may now require Tier-4. www.absoluteequip.com or Call 412-931-6655.
     

     
    Detail Masters
     
    Overspray Removal
     
    We offer professional, turnkey service and unparalleled quality!
    Our process can save hundreds— even thousands of dollars. It's fast, environmentally safe and 100% guaranteed.
     

     
     
     

    Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

    TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


    The Technology Publishing Network

    Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

     
    EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
    REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
    MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us