Metal Halides

[Murminator]

Originally Posted by Joe Reefer

You might want to think about 400's, but 250's with a good quality reflector should work well.

I'm with Lando

[SusanB]

The GVRD adds sodium carbonate to raise the pH of our water to limit its corrosivity to piping. The pH can fluctuate depending on which reservoir they're drawing from, how much soda ash they're adding (or if the system is working at all) and what form of chorine they're using to disinfect.

The chemical analysis of Vancouver water can be found by digging around the GVRD website quality control reports

http://www.gvrd.bc.ca/water/quality-and-treatment.htm

or by phoning them.

SusanB

[X-Treme]

Originally Posted by SusanB

The GVRD adds sodium carbonate to raise the pH of our water to limit its corrosivity to piping. The pH can fluctuate depending on which reservoir they're drawing from, how much soda ash they're adding (or if the system is working at all) and what form of chorine they're using to disinfect.

The chemical analysis of Vancouver water can be found by digging around the GVRD website quality control reports

http://www.gvrd.bc.ca/water/quality-and-treatment.htm

or by phoning them.

SusanB

Maybe...........Just maybe the wrong thread????

[marie]

Originally Posted by X-Treme

Maybe...........Just maybe the wrong thread????

I hate it when that happens

[Norstar]

Doh!