That's odd. They are saying 13 days, and $1 off if it's late.I did order a meter from the link you posted. It was C$0.69 including shipping. It'll be here in February.
Having quality tools helps outI've been using the new ph meter for 5 weeks now and it's done wonders for my plants. I test the calibration eery time I use it and recalibrate it as necessary. There is no premature yellowing and the plants are loiving the ph balanced feeding regime. I don't use the ec meter as the feeding is pretty well dialed in. EC is about 1.3.
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Idk mate I’ve used the ph meter and I found it to be incredibly unreliable. I ended up spending 100$ bucks on a lab grade ph meter and haven’t looked back.So, I bought this inexpensive kit from Amazon.
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It's a cheapo for sure but hopefully some of it works. I stopped testing for ph after my 4th pen stopped working properly. I've been flying blind for years now with reasonable results but I get leaf yellowing about 7 weeks into flowering which I believe is causing reduced yields. It'll be here in a couple of days. I'll give my initial thoughts when it arrives.
Lol I didn’t realize how old this thread was when I responded. I saw two pages and figured wrong.The original ph meter and ec meter are still working fine and my wife is very happy with the moisture meter that I gave her. I wanted the new ph meter as a back-up. After my current crop, the ph meter won't get used for 3 - 4 months and that's when the meters seem to fail on me. My tap water is a constant ph and I know exactly how much ph down I need per gallon. I just use the meter to ensure I don't screw up with the measurements.
Many pH meters will be ruined in rain/distilled/RO whatever.Lol I didn’t realize how old this thread was when I responded. I saw two pages and figured wrong.
I’m glad it’s working for you, it just didn’t work for me unfortunately. But I use rainwater which is more inconsistent, at least for me.
Interesting my rain water comes out like 9 haha but I get what your saying. I stopped looking at it once I moved to living soil but I break out the Apera meter for some hydro stuff sometimes when doing seed stuffMany pH meters will be ruined in rain/distilled/RO whatever.
It's okay once the feed is in, but not pure water.
I have killed a costly meter learning this.
Checking the pH of such water isn't needed anyway. It will be about 6.5 as water is 7, and it has co2 in it. With so little in it, the slightest bit of something will dominate it. My feed is 4.0 (in the bottle) so in RO I get 4.0 as the water has nothing in it to effect the feeds 4.0
We often speak of buffering, which is the waters resistance to change, but it's not the water really. The tap water usually carries calcium, and calcium has the 8ish pH commonly seen. It's not really the water, but the stuff in it that sets the pH, and how set, is the buffer against change.
I'm saying this, as with RO I use my feed, which leaves the tank at 4.0 and I just use it. I feed coco/soil at that 4.0 as my feeds buffering is weak. The soil/coco has a stronger buffering action. The 4.0 in the top, comes out the bottom about 7. Had I tried to correct the pH, the 'up' required would be minuscule. Leaving the set point weakly buffered, and likely to change with temperature. Also my feed is fine, and adding alkalies to it didn't keep my plants any happier. It started to upset the plants. Even in rockwool I was pouring in 4 and getting out 7. With any acid just not making them happy.
I do see most people use RO then set the pH, but it's worth looking if you actually need to. All feeds are different in this respect. Mine uses just 50ppm Ca hence it's a low pH with little buffering. A high pH feed could actually come out the bottle higher.
But yeah.. killed my meter measuring RO, in one dunk
Your mileage obviously varies from mine.Many pH meters will be ruined in rain/distilled/RO whatever.
It's okay once the feed is in, but not pure water.
You will get false readings if you have less than 100 or 125 ppm in the water.Interesting my rain water comes out like 9 haha but I get what your saying. I stopped looking at it once I moved to living soil but I break out the Apera meter for some hydro stuff sometimes when doing seed stuff
Sorry I should have been more specific I was referring to 9.0 PH, the PPM is 140 or so.You will get false readings if you have less than 100 or 125 ppm in the water.