DWC in a bathtub???

OK, here's the deal. My flower room is in a shower/bath. I converted a full bath into a half bath.

I'm currently vegging 8 plants DWC and plan on flowering RDWC. I was planning on using three 10 gallon tubs inside the tub along with a 5 gallon control reservoir. This would allow me to flower 6 plants.

I'm considering using the tub as one BIG reservoir, putting a sealed board with holes in it over the tub for my baskets to sit in. I figure this way I can still fit 8 plants in, a place for my fan, a hatch opening to run water into, and a hatch opening for pH testing and reaching the drain.

Here's my thinking:
Pro: lower pH and ppm fluctuation due to the large reservoir size
Con: using butt loads of nutes
Pro: lower temperature fluctuation
Con: harder to adjust temperature due to large amount of water
Pro: plenty of room for massive roots
Con: massive amounts of air stones

Any thoughts?

do it... your cons aren't really that bad...

plus it would be cool as fuck take pics if you decide to do it

Well, what really tempts me is how easy this would be to do. I've basically already did this with my soil grow. See below:




Of course the holes will need to be smaller for the 6" baskets, and I'll have to seal it. I'm thinking about painting it with an exterior latex, then following with a brilliant white latex for some light reflection.

I'm only bummed about the nutes. If I follow the GH instructions about weekly/bi-weekly nute changes then I'm going to go through a lot of nutes. Otherwise, if I go with the popular idea of only replacing the res. water once I've topped off with an equal amount of water, then my nute increases will have to be pretty aggressive from beginning of flower till end of flower. I'd probably end up going from deficiencies to nute burns. Reason leads to believe me that I could go somewhere in the middle, but then I'm going to have to rely on my own reasoning and judgment as far as nute adjustments. It would be a real trial by fire.

tis true. but if it works, it would be awesome

Yea, I think I've decided to do it. Here's a question for you DWC growers. Would it be advisable to put a submersible pump in there to keep the water in constant motion?

hey man you can make it an artificial evironment grow, put your shower on a timer and just let it rain on your plants to refill your res your plants wont even know they arent outside


I thought of doing this with a soil grow, you could fit a great deal of soil in a tub plus its got the drain.

TheConstantGardner said:

Yea, I think I've decided to do it. Here's a question for you DWC growers. Would it be advisable to put a submersible pump in there to keep the water in constant motion?

Click to expand...

submersible pump would be good to keep that much water from going stagnant. also, air stones would make your roots happy. the only thing i would be concerned about with a sub pump is the amount of noise it would make sitting on the bottom. you could probably outfit it with rubber feet or something to eliminate that though