storing winter-growing bulbs during dormancy

M Roberts
Fri, 26 Oct 2012 20:33:16 PDT
Thanks for the correction. US EPA regulates a drinking water standard  
of pH 6.5-8.5.
US EPA drinking regulations:
List of National Secondary Drinking Water Regulations
Contaminant	Secondary Standard
Aluminum	0.05 to 0.2 mg/L
Chloride	250 mg/L
Color	15 (color units)
Copper	1.0 mg/L
Corrosivity	noncorrosive
Fluoride	2.0 mg/L
Foaming Agents	0.5 mg/L
Iron	0.3 mg/L
Manganese	0.05 mg/L
Odor	3 threshold odor number
pH	6.5-8.5
Silver	0.10 mg/L
Sulfate	250 mg/L
Total Dissolved Solids	500 mg/L
Zinc	5 mg/L

Mark Robertson

On Oct 26, 2012, at 5:34 PM, Jane McGary <>  

> Mark wrote
>> Water treatment plants are required, at least in America, to  
>> discharge
>> water above pH 7.4. Low pH and high dissolved oxygen increase
>> corrosion of lead solder in old pipes which is a public health  
>> concern.
> The one that feeds my new home (with water from the Clackamas River)
> doesn't. I know because I just filled and tested the hot tub, and I
> had to add quite a bit of chemical to raise the pH enough. The low pH
> of my well water (delicious pure water) at my old place affected the
> copper pipes some and a plumber installed a device to correct it.
> I have a rainwater storage tank (1100 gallons) that captures runoff
> from the bulb house, and then I siphon the water out with a hose to
> irrigate the bulbs. I also mix the fertilizer with it. It is slow,
> and I should probably have an electric line run out there so I can
> install a pump in the hose line. Yes, I am too lazy to set up an
> extension cord every time I want to water the beds. I use tap water
> on my seedlings and other container plants, not to mention the
> irrigated parts of the garden, and I don't see any damage on plants
> or mineral deposit on the pots.
> Does rainwater really have more "air" (gases, which ones?) than tap
> water? I've heard that snow does, and that if you pile snow on your
> seed pots and let it melt there, it will enhance germination. I don't
> know if it's true, but I do it anyway when snow is available.
> Jane McGary
> Portland, Oregon, USA
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