225 ppm tap water

[420master]

I have a question about measuring ppm. My tap water is about 225 ppm (well water with a fair amount of limescale), I am running DWC buckets with leca pellets.
When I add nutes to water with 225 ppm, what ppm should I be aiming for? Let say want a 550 ppm nute solution, would I add the 550 to the 225 and end up with a 775 solution?
I'm on about week 2 of veg and I trying to be cautiously aggressive with my feeding, but don't want to overdo it, although I do think I may have a very slight nute burn.

 

[Death The Cultivator]

I have a question about measuring ppm. My tap water is about 225 ppm (well water with a fair amount of limescale), I am running DWC buckets with leca pellets.
When I add nutes to water with 225 ppm, what ppm should I be aiming for? Let say want a 550 ppm nute solution, would I add the 550 to the 225 and end up with a 775 solution?
I'm on about week 2 of veg and I trying to be cautiously aggressive with my feeding, but don't want to overdo it, although I do think I may have a very slight nute burn.

@Mañ'O'Green is the DWC machine.

 

[Mañ'O'Green]

Your water is a bit too high at 225 PPM but not totally out. If it were me I would add a gallon of DI or RO to bring it under 200 PPM. It is not a deal breaker at 225 PPM.


You do not count the starting PPM of your water. 550 PPM nutes is a little high for week 2. I personally run 200 PPM first week, 400 PPM second week and then increase by 10% each week until a little tip burn then back off 10%. Since you are already seeing tip burn it will be difficult to use this method. You know 550 is too much for week 2 but it may not be too much when flowering starts? I get as high as 700 in the third week of flower but I watch the plant and back off if it is too much.

This part is the art of growing. Just play with it within reason.

 

[Raggedy Man]

I'm at week 8 with a dwc grow and can barely get one of the totes to take 400ppm and the second one just to 500 and they are well into flowering. I guess it's a strain specific thing

 

[AutoCritique]

My tap water (county water) is around 700 ppm and EC is like 1600+

I've been using Kroger drinking water instead

 

[420master]

Your water is a bit too high at 225 PPM but not totally out. If it were me I would add a gallon of DI or RO to bring it under 200 PPM. It is not a deal breaker at 225 PPM.


You do not count the starting PPM of your water. 550 PPM nutes is a little high for week 2. I personally run 200 PPM first week, 400 PPM second week and then increase by 10% each week until a little tip burn then back off 10%. Since you are already seeing tip burn it will be difficult to use this method. You know 550 is too much for week 2 but it may not be too much when flowering starts? I get as high as 700 in the third week of flower but I watch the plant and back off if it is too much.

This part is the art of growing. Just play with it within reason.

Thanks Man! It wasn't quite that high, that was a guess because I didn't have the numbers in front of me.

 

[420master]

Your water is a bit too high at 225 PPM but not totally out. If it were me I would add a gallon of DI or RO to bring it under 200 PPM. It is not a deal breaker at 225 PPM.


You do not count the starting PPM of your water. 550 PPM nutes is a little high for week 2. I personally run 200 PPM first week, 400 PPM second week and then increase by 10% each week until a little tip burn then back off 10%. Since you are already seeing tip burn it will be difficult to use this method. You know 550 is too much for week 2 but it may not be too much when flowering starts? I get as high as 700 in the third week of flower but I watch the plant and back off if it is too much.

This part is the art of growing. Just play with it within reason.

@Mañ'O'Green, I was just looking over my pics after smoking a few bowls and I got a little nervous. I just think it may be more yellow than I initially thought.
I'm changing the res tonight and wondered if you can offer a suggestion as to how strong I should mix my nutes.
Its currently at 580 total, which should be about 355ppm of nutes. I was planning on staying at that strength for the next week and maybe going adding a little after 3 or 4 days, but after seeing what looks like an all-over yellow tinge, I was considering either plain water or maybe about 150-180 ppm.
I'm using emerald harvest 3 part and I have some of the supplements... I have only used the base nutes and some root wizard at this point.

 

[Mañ'O'Green]

Pale color (lime) means you need more nutrients not less. I am not familiar with that brand but most brands require at least two or three parts for the nutrients to be complete (not everything needed is in one bottle). So they do not give information in PPMs so here is what you need to do. Measure the PPM of your water just before making 1 gallon of nutrients with 2ml of grow and 2ml of micro (micro first) and 2ml of bloom and measure the PPM This will give us an idea of what the vendor is recommending. Let me know the results of that test and I can advise from there.

By the way if you see an amount in the column of the base nutrients (Grow, Micro and Bloom) you need it in that stage of growth it is not optional! I highly recommend that you use a vendors entire line ONLY until you learn a lot more about nutrients. follow this chart to keep everything in balance. The only deviation from that is for Cal-Mag If you begin to see a deficieincy bump the cal-mag up 50PPMs every other day until it stops.

 

[420master]

Awesome! That's a great idea! I will do that tonight. I'm not growing at home and have no internet connection there so it will be a little later before I can get the results.
Thanks.

 

[420master]

262ppm 5.9ph starting
631ppm 5.9ph mixed

I was not able to check it last night. There was a guest at my friend's house last night and I couldn't do it.

This is how I treat my water before mixing.
Tap is usually 8.4 ph and 225 ppm.
I fill a bucket and put the bubbles to it, and set the ph to about 5.5. The air is always on.
I keep a check on it daily and adjust ph as needed to keep in near-optimal range. After a few days, it stabilizes and I can keep it between 5.8-6.2 for about 2-3 days with no adjustment, and then when it gets above 6.2-6.4 I knock it back to about 5.8.

Tonight I checked my water bucket and it was still 5.9 from 2 nights ago. I poured off 1 Gallon into my one-gallon measure bucket. It was 262ppm up from 225ppm straight out of the tap last Saturday. I added the nutes per the label and got 631ppm