Help please!!!

I had a sub pump running in my rez just to keep nutes mixed up, but I wanted to take it out cuz it would heat my rez alittle everyday. Im replacing it with a big air stone. My problem is when I unplugged it and took the pump out of the water it automatically dropped the ph to 3.8 from 5.9 which never would move otherwise. What he fuck is up with that?!?! It can't be an accurate reading can it? I've never had a problem with my meter before. My plants have fed 3 times today with it like that and they look fine. . . .

And I plugged the pump back in and put it back in the rez for shits and gigs and it brought it right back to 6.0. Then took it out and back to 3.something....

Electrical interference?

Dont know if this helpas but......i started a xclone in a 5gal bucket i rigged up, im usully in waterfarms but decided to try this out. anyway, i took a ppm reading the day i started her which was about 3 days ago & a few hours ago i went to check the ppm"s & the meter went crazy ! numbers were jumping & i mean fast. i went on to check my other plants in my waterfarms & had no problem.

The clone looks fine so i think its all the movement in the water.

superstoner1 said:

Electrical interference?

Click to expand...

I guess it must be, kinda strange though. I know a small elelectric current is used to measure EC or ppm's, not sure how it ould affect ph. I sure don't want to be guessing what my ph is for the rest of the grow, but I really don't want to put that pump back in.

Put pump back in and test with it plugged in and then with it unplugged.