Clarification

[G.Holt]

Hello everyone,

Thank you in advance for your help. I've been doing tons of research before I start a residential project. I'd eventually like to do roofs as well. I'm a part-timer for now. Small homeowner rig till I can afford another. 2800 psi, 2.3gmp (LOL).

Just want to clarify my house mix and get a better understanding. Seems like the standard house mix is 2 gallons SH (I'm using 10%), 3 gallon H2O, 5 oz Elemonator (simple cherry as an alternative), maybe a dash of dawn or gain. I have a 10:1 general pump downstream injector. Are these calculations correct? If so, then I only have .4% SH hitting the surface??? Here is the calculation:

2 gallons in 5 gallon pail = 40% solution in the 5 gallon bucket X 10% pool bleach solution= 4% actual SH / 10 for the injector =.4% hitting house

It would take full strength at 10:1 to get 1%, correct?

I have read here and on other forums that you need at least1% SH to kill mold on siding. (2%-3% if you want to go faster) and 3-5% on asphalt shingles.

Any comments on my calculation and question?

Thanks,
Guy Holt
Decker Decks
816-560-1858

[offdutyfireman]

Calculations are irrelevant. Don't put dawn in your mix. Use the mix you have. I'd or doesn't kill mildew in about 2 minutes. Make it stronger

[pressurepros]

This time of year, err on the side of caution and do like William says.. I think the heavier side of the mixes you propose are where you will end up, but learning by experimentation is how you have to go.

[G.Holt]

Thanks, I will follow that advice.

[timo]

I just had a tiny flashback.

My two heroes from when I started ten years ago, The Fennerator and The Redneck General, gathered on my friend Bob's site. I think I even saw a post from Dave Mac a minute ago.

As The Condo King was fond of saying, Life Is Good!

[TrentF]

This is my mix I use if u want something to work off of. This is house wash mix, not roof mix. Roofs are a division I haven’t broken into yet:

Downstream mix:
2 gal of 10or12% SH
3 gal water
5 oz Elemonator
1 tbs of Gain original

X Jet mix with 10-1 proportioner:
1 gal of 10or12% SH
4 gal water
5 oz Elemonator
1 tbs of Gain original

On extreme hot full sun days I cut my SH back by about a 1/4 to 1/2 gal.




-Trent
North West Exteriors
Pride in your Property is my Priority!

[TrentF]

This is my mix I use if u want something to work off of. This is house wash mix, not roof mix. Roofs are a division I haven’t broken into yet:

Downstream mix:
2 gal of 10or12% SH
3 gal water
5 oz Elemonator
1 tbs of Gain original

X Jet mix with 10-1 proportioner:
1 gal of 10or12% SH
4 gal water
5 oz Elemonator
1 tbs of Gain original

On extreme hot full sun days I cut my SH back by about a 1/4 to 1/2 gal.




-Trent
North West Exteriors
Pride in your Property is my Priority!

Correction: with my units 5.5 gpm, my Xjet is about a 7-1 proportioner.

Calculations are a good text book way of mixing, but with the way SH degrades with time you can throw the text book out the window.


-Trent
North West Exteriors
Pride in your Property is my Priority!