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  1. Sam&Max

    Calculation for the right mini split size. Is 24.000 BTUs enough?

    I need a mini split for keeping the temps in my rooms right. Is for the following setting 24.000 BTUs enough? I have two sealed rooms (flower and motherplants), total 16.7 x 12.2 x 8.5 feet (1731 cubicfeet) (5.10m x 3.70m x 2.6m) which are side by side and have between air circulation by a big...
  2. Sam&Max

    What is the difference between these silenced 250, 315, 350 mm EC-ventilators? Is bigger better?

    The brand I talk about usually cost more than double. ;-) It is can filter lite. I guess it will be alright.
  3. Sam&Max

    Setting up a sealed room for winter - any advice?

    is there any special equipment or knowledge needed for installing it yourself?
  4. Sam&Max

    What is the difference between these silenced 250, 315, 350 mm EC-ventilators? Is bigger better?

    ok change of plan.... I think it is better to buy a minisplit and distribute the air between the rooms and scrub it. Ok I still got this offer for the EC-fans this weekend and also sourced two new very cheap charcoal filter (2000m³/h (25mm) for 80 bucks and 3500m³/h (35mm) for 190 bucks). So...
  5. Sam&Max

    Setting up a sealed room for winter - any advice?

    It seems like they are not that expensive as I thought.
  6. Sam&Max

    Setting up a sealed room for winter - any advice?

    Unfortunately not yet. There were or are some circumstances I have only limited power over ;-) Now when it is getting warmer, it is kind of a bit a problem, as I now don't have money for the mini split and need to rely on air ventilation. Actually I am trying to sort that out this weekend. How...
  7. Sam&Max

    What is the difference between these silenced 250, 315, 350 mm EC-ventilators? Is bigger better?

    Hey guys, need a short advice. My two rooms together have the size: 16.7 x 12.2 x 8.5 feet (1731 cubicfeet) (5.10m x 3.70m x 2.6m). One room flowering with 4x600Watt double ended and the other room is mother plants and clones. My plan now is to buy an EC-fan which I will use for air circulation...
  8. Sam&Max

    Setting up a sealed room for winter - any advice?

    I looked at Quest, but it costs 8 times more than my unit.
  9. Sam&Max

    Setting up a sealed room for winter - any advice?

    what do you guess, how long/often your humidifier is running? I got one which claims to do 105 pints a day (they claim it can do this at 80 % humidity and 30 degree celcius) and 775 watts. But I am wondering if it is really strong enough.
  10. Sam&Max

    Questions about cultivating my first four mother plants.

    I realized I still have a unused lightning kit of Lumii sitting around. It is a single ended HID 200/400/600 watt light fixture. So I also could use this thing I guess. I read that with t5 bulbs I need to keep the lights close to the plants. If my plants are different in size, I might run into...
  11. Sam&Max

    Setting up a sealed room for winter - any advice?

    how many watts has your dehumidifier btw?
  12. Sam&Max

    Questions about cultivating my first four mother plants.

    Hi, I was planning to keep 4 mother plants. 2 strains. So it is two plants per strain. I want maybe 70 to 100 clones of each strain every two months. So that would be 150 to 200 clones every two months. Do you think two motherplants per strain will give me these results? Never had a mother plant...
  13. Sam&Max

    How to coat galvanized metal in reservoir against liquid fertilizer?

    thank you! good advice too!!! Much cheaper than the ship paint. But I am not sure if it will stick to a galvanized surface. Some paints don't hold on galvanized steel. I will see what is the best and cheapest option.
  14. Sam&Max

    How to coat galvanized metal in reservoir against liquid fertilizer?

    I sourced stainless steel in a grade which is commercially used in such environments. Also I sourced painting which is used on ships on the parts which are underwater. :-D
  15. Sam&Max

    How to coat galvanized metal in reservoir against liquid fertilizer?

    But my guess is that galvanization in a strongly corrosive environment, like in a fertilizer tank, is not the right thing. I need to know what stuff I can put on it and is resistant enough.
  16. Sam&Max

    How to coat galvanized metal in reservoir against liquid fertilizer?

    Hi, in my reservoir (a big rectangle rain barell) there are three thin galvanized stabilizators. They go from one side to the other of the rain barell and their purpose is to prevent the rain barell from breaking when it is filled, because of the water pressure on the side walls. See the small...
  17. Sam&Max

    How to build a return pump setup in an ebb and flow table setting

    I am still figuring out which solution to choose. It seems like I will go with solenoids which let the tables flood and drain sequentially and under the tables I will have a small reservoir where it drains into from the tables. In that reservoir will be a pump which gets activated when there is...
  18. Sam&Max

    Electrical Question: Is setup good or will length and thickness of cable cause voltage drop?

    Interesting German based project: https://grassberry-high.com/main It is based on the Raspberry 3. I heard it is more advisable to go with the Raspberry 3...
  19. Sam&Max

    Electrical Question: Is setup good or will length and thickness of cable cause voltage drop?

    BOMB!!! :-) Would not have found it by myself. Thanks man! ;-) We are getting there! I did read through the website and the building and configuring process. So now I wonder if there is also code and instructions for installing a CO2 sensor? Din't see it anywhere... Only somebody in the forum...
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