Im new on this site but can see there is lots of good info here. I have recently started cleaning a few decks and sealing them. I can not figure out how to do this without using lots of pressure. I have used a sodium Percarbonate based cleaner I mixed. My measurements may be off though. It doesnt seem to help much at all when I use the acid based cleaner, I just pressure the old wood clean. If I use low pressure 1500psi or less nothing cleans at all. Any suggestions on mixing ratios would be very helpful, or I guess Ill just keep increasing the amount of acid in my solution. I was using about two cups of pure acid per five gallons of water. Oh, and I have been using a respirator too, wanted to make sure this was necessary for this type of solution. Thanks for any input given.
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low pressure cleaning????? How?
- Thread starter rodney
- Start date
doug mckenzie
New Member
WHERE DO YOU LIVE ? hang on people will tell you what they like. i use a product called NEW AGAIN suds mckenzie
Rodney,
I usually use no more than 4-500 psi to clean decks. My rig is 4000 psi/4 gpm, but I change the pressure with the tip - usually a 10.0.
I have never tried the percarb cleaners, probably because I have great success with sodium hydroxide cleaners, followed by a light spray of oxalic acid to neutralize/brighten.
Using this system, I can strip solid stains - multiple coats even!
John
I usually use no more than 4-500 psi to clean decks. My rig is 4000 psi/4 gpm, but I change the pressure with the tip - usually a 10.0.
I have never tried the percarb cleaners, probably because I have great success with sodium hydroxide cleaners, followed by a light spray of oxalic acid to neutralize/brighten.
Using this system, I can strip solid stains - multiple coats even!
John
I live in Greenville, NC where we have lots of humidity, makes for lots of dirty roofs. but back to the deck cleaning, John you say you use a sod. hydroxide solution. Is this more than a regular 6% solution, and if so can you tell me how much you may mix to get good results. Also Is there a certain amount of time these solutions must sit to work better, and or can you let them sit too long and make the job harder. Im still trying everything, im sure Ill catch on eventually, I was just hoping sooner than later. Thanks for all the help guys.
Last edited:
ron p
rodney, i think your confusing sod hyd [a caustic soda] with sod hyperchlorite [active salt in household bleach]
Rodney, remember this. Chems clean,pressure removes,gals per min = speed.
Also pressure = wear
you want to get surfaces clean with the very least amount of pressure.
learn what chem's work best to clean each surface.
Reading MSDS [material safty data sheet's] is one of the best way's of learning about active ingreadants.
Time that a chem sit's of a surface is called ''dwell''
Diffrent chems have diffrent dwell times.
No chem should ever be left to dry on any surface. Most chems stop working when dry.
rodney, i think your confusing sod hyd [a caustic soda] with sod hyperchlorite [active salt in household bleach]
Rodney, remember this. Chems clean,pressure removes,gals per min = speed.
Also pressure = wear
you want to get surfaces clean with the very least amount of pressure.
learn what chem's work best to clean each surface.
Reading MSDS [material safty data sheet's] is one of the best way's of learning about active ingreadants.
Time that a chem sit's of a surface is called ''dwell''
Diffrent chems have diffrent dwell times.
No chem should ever be left to dry on any surface. Most chems stop working when dry.