DWC replenishment question

The plants are working away, pulling various amounts of N-P-K out of solution and drinking liquid. Water levels are dropping. Is it better to *top with water and partial nutes* or *add water until total volume has been replaced and change* or some combination of both?

Either is fine imo. You can just add water and adjust PH if your religious with your bucket changes every 7 days. Replacing with 1/4 - 1/2 strength nute water is cool also, you can go longer without a full bucket change. It all goes back to your plants and nutes.

TheStainster said:

Either is fine imo. You can just add water and adjust PH if your religious with your bucket changes every 7 days. Replacing with 1/4 - 1/2 strength nute water is cool also, you can go longer without a full bucket change. It all goes back to your plants and nutes.

Click to expand...

Just top off with R/O water. I do run to waster and have to do a res change every 7-10 days.