help with water nutrients?

I'm about to start my first grow waiting on the white widow seeds I ordered from cropkings. I am going to run dwc setup in a bucket, the question is about the water/nutrients I have sensi grow a&b along with sensi bloom a&b was wondering if I need RO water or if I can just use tap water with it and would those nutrients be good enough if I just followed the recommended steps?

I only experimented with DWC a couple times back when i first started growing so i wont give you any advice to what nutes or ratios works best for it, in general though almost any nutes will do to get you going, as you grow in experience (pun intended) you will try different things and come to your own conclusions on what works best. Tap water is usually fine just make sure you check the ppm so you can adjust your final ppm accordingly.

DailyBlastin said:

I only experimented with DWC a couple times back when i first started growing so i wont give you any advice to what nutes or ratios works best for it, in general though almost any nutes will do to get you going, as you grow in experience (pun intended) you will try different things and come to your own conclusions on what works best. Tap water is usually fine just make sure you check the ppm so you can adjust your final ppm accordingly.

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And how do I adjust the ppm do I keep adding equal parts of both nutrients? and what does a good final ppm look like?

Grizzlychip said:

And how do I adjust the ppm do I keep adding equal parts of both nutrients? and what does a good final ppm look like?

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You shouldn't need to go over 800 in mid flower. 600 start of flower, 3-400 in veg.
And yeh, add more needed nutes to the solution you're testing to Raise Its PPM.

should I wait a couple weeks before I even start using notes or should I do it right off the bat?

Grizzlychip said:

should I wait a couple weeks before I even start using notes or should I do it right off the bat?

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Nutes should be used when they go into the system. but they shouldn't go in until they've got a decent root system with roots hanging well out the bottom of the net pot and a decent 6-12" plant.

so normal water until roots are hanging into the water supply then use the nutes?

Grizzlychip said:

so normal water until roots are hanging into the water supply then use the nutes?

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Don't even put them in the system. Clones you can put straight in if the roots are long. seedlings have to be started in root riot cubes and then left in the trays to build a root ball in the cube.

You can defiantly run nutes from the start. I Run 500-800 in veg
800-1200 in bloom.
you can use tap water if your ppm is less then 200. More then that and I’d use filtered.

My taps 120. I still use ro

Tap water varies all over the board, some people like myself are on well water, well water will almost always be "cleaner" (less ppm) than city water, city water can still be used, as deepwaterdean suggested 200ppm or less out of the tap is kind of the highest you want to see it at, anything above that and youll wanna get a water analysis done so you know what exactly is in it to determine wether or not you wanna use & amend it. Some people are a bit more.. lets say "picky".. about their water and go for RO to have a completely clean slate to start with. I do have an RO system in my house that i could use if i wanted but for my purposes its not worth it.. the 4x waste factor is a kick in the nuts to the earth and besides that the 80-100ppm that comes out of my tap is all micro nutrients that id just be adding back anyway. my suggestion is build yourself a little starter bubble bucket that you can start your seeds/clones in with just water, some rooting nutrients like dyna-gro's K-L-N for example are okay on the babies but as a general rule you dont wanna give infant plants too much "juice" at least until a few sets of true leaves are formed and/or you have a good rootball started. photos are of my old starter bucket. these plants were all clones, in rapid rooters, once i could see roots poking thru the rapid rooter i'd transplant it into a 3inch netcup with hydroton and only use ph'd water with K-L-N added per bottle recommendation. btw the 2 root pictures are only 48 hours apart

Edit: To answer your question OP yes raise ppm by adding more nutes, i've never used sensi myself but you say you have a grow 2-part and bloom 2-part, i'd assume, as with most nute lines, you will fade out/stop using grow and begin using the bloom when you switch the light cycle, you should be able to find a feed chart on their website to help guide you in the right direction.

I do RO to avoid ANY and ALL possibilities of pathogens or unwanted microbes coming into my system. RO gives you that guarantee if something goes wrong, it ain't your water. And I've yet to have an issue.