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[3roofmen]

I have a homemade outdoor furnace that holds approx. 280 gallons water. The PPM level is around 800 but my PH level is only 6.5. Can I increase the PH level with baking soda and not counter act my PPM level? Thanks Michael 

[BoilerHouse]

Baking Soda (sodium bicarbonate) shouldn't affect nitrite levels.  I would probably recommend concentrated sodium hydroxide (lye) if you can get it.  It is commonly used alongside nitrite as a corrosion inhibitor. It's nasty stuff and a little goes a long way.  Start with a few tablespoons and work up from there to avoid over dosing.  Aim for a pH around 8.5.

[ITO]

 Pool supply has ph increaser, so does Menards, lowes or similar.

[3roofmen]

thanks for the info guys

[Scott7m]

Most companies are happy with ph results in the 8.5-11 range

[3roofmen]

ok thanks

[allis48]

How can I lower my Ph mine is over 11

[CountryBoyJohn]

Same place Mr. ITO mentioned.  Pool supply stores make a product called "spa down" or "ph reducer" or things like that.  There are instructions on the bottle as to the dilution requirements.