Summertime watering temperatures..

[Bud Green]

Hey guys and gals,

I've searched the forums high and low and can't find an answer.

I live in the rural south and it can sometimes go without raining for 4 or 5 weeks during July or August.

I have built a large rainwater storage tank that collects rain from a metal roof.. The water is clean, but I want to know about temperatures. If the water gets to be 90 to 95 degrees sitting in the tank, how will this affect my garden?

I have 2 choices, tap water with chlorine and whatever else they add, at about 70 degrees or clean rainwater at about 90 to 95 degrees...

I would prefer the rainwater at no cost and no chemicals, but I wonder about the temperature..

Can anyone give me a straight answer on this? Thanks

 

[GonBush]

I really don't think it would matter; we're talking about a hardy plant here, not some rare delicate orchid.

 

[5th]

And I think it matters a great deal.

Thats fucking hot water and plants....any plants...aren't gonna like it.

Anyway you can paint/cover your tank?

 

[michaelswines]

Water is H2O, the O part is Oxygen, in this case your roots need dissolved oxygen, unfortunately if the water gets too warm or hot, this dissolved oxygen is no longer present. Clearly this presents a problem. Additionally, water is more than just a medium to add fertilizer, water can be used as a coolant! If it is super warm or hot outside and it happens to coincide with your feed time, then you can use water as a tool to keep your plants cool and happy so that they continue to flourish. Is there a way for you to store your tank in a cooler environment, perhaps underground, or under intense shade? In reference to your chlorine situation, you can always filter that out or let time dissolve away the chlorine, this can be expedited by an air pump diffuser.

 

[GonBush]

Hey guys and gals,


I have built a large rainwater storage tank that collects rain from a metal roof.. The water is clean, but I want to know about temperatures. If the water gets to be 90 to 95 degrees sitting in the tank, how will this affect my garden?

In my experience with rainwater tanks the water remains quite cold, even in the middle of hot summers.

 

[idiit]

the question is a good one imo.

the temp. of the water in a tank has never occurred to me. i also live in the south.

there is one aspect that you should be aware of. in the south if you have clay soil i've noticed irreparable damage to bud product produced in the fall from watering plants in hot temps during the summer when there is no bud formation yet. the fall buds do not form out properly. i call this ph burn. the buds don't form out right (homegrown look as opposed to quality sensi look). the buds don't have much potency.

^ i strongly suspect that clay soil ph swings highly acidic when it's hot and the area around the stem is lightly watered. water a "larger area" - "the the entire area" instead of a small area around the stem.

most growers down here can't grow in the clay. if they are successful they are doing tub grows. i believe one of the reasons is that they watered when the summer temps were hot. sparse watering during heat seems to actually kill the plants.

if you water during the summer late in the day and heavy watering seems to work better than sparse watering during the day.

i've been doing this here for 20 years. it's a very big deal and few know about the dangers of sparse watering during heat waves and appropriate time of day and to do very very heavy watering infrequently.

if you go to my albums you can see some od bud shots.