Pst...TSP secrets?

[saul]

Hello folks,
I've always used TSP and bleach to prepare houses for painting, and I usually rent a gas powered PW with a siphon feed to apply my detergent and rinse.

I don't know what the typical mix ratio is, I usually just make it extra strong and do a test.

I was wondering - does anyone have a good "recipe" for say, a five gallon batch of TSP and bleach? do you add anything else, such as powdered detergent, to help rinse the bleach?

If you've got a good formula, what kind of rig do you use it with (gpm's, psi, tip size, etc?)

Thanks!

 

[Russ Spence]

i use mine premixed 12.5% sodium hypoclorite,tide and cascade and i down stream it at 20% or 5:1 oh 5 gallons of 12.5%-.5 gallon tide and a good squirt of cascade thats the small version i mix mine up 25 gallons at a time

 

[saul]

Thanks Russ,
If I may ask, "12.5% sodium hypoclorite" - is that like trisodium phosphate? For painting prep, I like the etch that TSP puts in the old finish. Does this stuff do that too? And is that Tide liquid, or powder?

 

[Russ Spence]

tide liquid......and no sodium hypoclorite is not anything like TSP.....bleach is usually 5.5 to 6% sodium hypoclorite.....this stuff is over double the streangth of regular household bleach.....not available in stores!!!!usually it is purchased through a pool supply company...i pay around 85.00 for 55 gallons...and no it does not etch

 

[saul]

Thanks again Russ. How long do you let this mix dwell on the surface before rinsing?

 

[Russ Spence]

i always use a minimum of 15 min on most all applications