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If it is coming from a 40 A circuit ... then it needs to go into a disconnect rated at 40 A .. then you can use 15 or 20 A breaker to feed the lights

I think that is made to switch one off when the other comes on most ballasts are made for a single lamp .. You might be able to find a 2 lamp ballast .. but I don't know of one for Gro-lights

I will start this thread with the intention of trying to answer reasonable questions ... I will appreciate help from qualified electicians . Haha ....I don't want this to be a full time job .... so please allow time for me to get back to you . If you are not comfortable with electricity...

hmmmmmm ... kind of a tough ..lengthy one ..... if your humidity controller .. uses the same circuit as your temp controller ... you COULD feed the supply wire to your fan ..from both controllers then your fan would come on "either" from temp or humidity Ctrlr

Yup .. works the same ... I would use 230 for calculations ... reason is 120 .. isn't ALWAYS 120 ..it varies ..... distance to source, time of day etc.... I've seen 117 in the morning and 113 in the afternoon 220/240 works on phase A and Phase B cycles ..110 +110 = 200 117 -117 = 234 ...

By code ... any electrical device within 6 ft of WATER .. must be GFCI (Ground Fault Circuit Interruptor) protected ... It's there to protect people ..in case a Hair dryer falls into the bathtub (just an example ) or to keep you from being electrocuted if you are standing in water

Drill a 1/4 " hole in the cap that came with the bottle too many variabls to say... there are test syringes ... that u can use to measure ppm of CO2... they have 'em at the hydro supply that I go to

2 x 1000 + 400 /240 = 10 amps u need to total wattages for your 110V circuit and divide by 110 .. but 20 A circuit is PROB'LY OK Digital (electronic) ballasts are more expensive .. give off less heat .. are quieter .and use slightly less current ... your call not sure what u mean by...

Where I live ... the water company goes to great lengths to keep Municipal water supply at 7.0 ... rain water is usually pretty close to 7.0 .. unless you are in areas prone to Acid rain which is generally about the same as tomato juice ... 6.5 to 6.8

I don't know .. but Brick may be gone .. but U R right Wyteboi .. has he posted here in a while ? This could get outa' control real quick !

U need to add up your total wattage and divide by 110 to determine amps used .. changing a 15 amp receptacle to a 20 A receptacle doesn't keep you from tripping breakers ..

warm .. yeah ... HOT ... no ... 120 Volt ? 2000W/ 120 V =16.6 amps 15 amp circuit ? U R overloaded

OK Danny G .. see ya'

I got mine .. from Nor Cal as clones ... but I found this : http://en.seedfinder.eu/Reservoir_Seeds_-_Sour_Diesel_IBL.html and this : http://www.kindgreenbuds.com/marijuana-strains/sourdiesel.html

That's pretty solid Info .. Jester 88 did a thread .. that covers alot of info on breeding and seed production .. check it out https://www.rollitup.org/general-marijuana-growing/173816-breeding-seeds.html

Oh .... haha well then u can tell me .. how soon after going under flowering lights they will show signs .. I've never put a seedling into flowering that soon I did plant some seeds outside once in LATE Autumn and saw signs of sex within a month ... ..after the solstice .. they revegged

U will see preflowers right after it gets to alternating nodes ... then u can cut lights for a few days (if u need to ) and see definite Pistils or stamens .. there are threads here for determining sex .. but I can't find one right now haha

I would guess they will be about half female and half male .. but with a sample of 20 .. u could have a deviation of three or four either way ... out of fifty seeds I have grown .. I would guesstimate that thirty were female .. maybe I'm just lucky Curious to see how many you get

Spruce Zeus did a really nice thread on when to harvest I think it will only get better if you wait kinda' hard to tell without closer pic's https://www.rollitup.org/harvesting-curing/210501-zeuss-take-harvesting.html

Yeah ..it worked ... Thanks ... Cool ..u got plenty of power ... no spares ? .. Bathrooms often have separate circuits and 2 for bedrooms .. dining rooms may have one dedicated circuit .. etc