PH not staying stabilized

[bragadam]

I'm running a hydro drip feed to reservoir and I adjust my PH to 5.5 but when the pump starts after e few minute it going up again to 7.8 my medium is gravel

 

[jafooli]

sounds like your gravel is putting ph out. did you soak gravel before putting plants in

 

[silusbotwin]

sounds like your gravel is putting ph out. did you soak gravel before putting plants in

I second this. Your gravel is probably the culprit. Gravel doesn't sound like a very good medium anyway.

 

[bragadam]

I thought about that that the gravel may be the problem but for me to get another medium here on the island is very difficult but the gravel I can use it again an again just wash it and it ready again and i having good results from my plant I just wanted to see if I will get better result if the PH was stable

 

[billybob420]

What island? Can I come and hang out?

 

[superstoner1]

that doesnt look like normal gravel. it looks to be more mineral. be carefull.

 

[DeeTee]

My first grow was in pea stone gravel and had no problems, that stuff you have looks quite different, I agree with superstoner looks more mineral, could it be lime stone?

 

[marc88101]

Giligans island? I'd bang ginger and mary
ann...say hi to the skipper for me

 

[hellraizer30]

Looks like ground up lime stone, this would cause huge ph swings

 

[oceangreen]

go nft, no medium

 

[bragadam]

I might have problem Ithink with NFT because here ON the island it's hot 30-40C and I plant outdoors

 

[bragadam]

Dee Tee you were right it not normal gravel it limestone I didn't know I went to the company website and it's Special fine ground limestone for:

- Agricultural sector
- Cattle- and poultry feed
- Soil improvement
- Soil acidity control
- Agricultural and market gardening so now I know why my PH keep on going to 7 it's a Soil acidity control

 

[bragadam]

Here is a pic of the plants it's white widow from .greenhouseseeds.nl but it does not look like white widow strange