Hi Prom. Totally agree with you and IF I continue with hydro I will invest in a water chiller.
It's very possible that I may go the organic soil way next grow inside!.
Apart from the usual rigmarole of nursing young plants........when older they will only need water at possibly only every 36-48hrs. That means (as I see it) keeping water in tank at a good temperature for this amount of time is a fairly pointless exercise as I can easily 'prepare' water for individual feeds ie; every 36-48 hrs.
I'm only growing 4 plants at any given time so would only have to prepare around 10 LTRs at each event.
Let's see how this existing grow works out and before I decide what the next grow will be I will 'wing' the Nute temp with frozen bottles before investing in something (chiller) for a hydro future.
Have a lekker day......
Just started trying the 'frozen bottle' suggestion!. 3 500ml bottles have brought the temperature down to 20.8° from 23.5°!. Will monitor and update but working well.
Man... You just gave me the answer to my last issue I had with my 4 DWC units, which was cooling them effectively.
I have a Small chest freezer, I could run 4 copper lines through there and just a small 2nd pump for each DWC that will circulate the water from the reservoir through the freezer and back into the reservoir.
Then as you say, put these pumps on temp controllers monitoring the reservoir temp.
Thank you for that.