too much humidly

My friend is growing in his basement and his last 2 grows he's had powdery mildew. It rains a lot here and he is bringing in air from out side and exhausting outside. I think he needs to have both blowers going out and no wet damp air coming in. What do you guy's think.

I think your friend needs to invest in a DEhumidifier, and then redial his intake and exhaust (slow down) but not to upset the temp to much. just gotta dial it in to get a happy medium between the humidity and tempeture.

jrainman said:

I think your friend needs to invest in a DEhumidifier, and then redial his intake and exhaust (slow down) but not to upset the temp to much. just gotta dial it in to get a happy medium between the humidity and tempeture.

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The people at my local grow shop thought that having the 2 blowers exhausting the air with no intake till it got to 80 then exhaust. I hate to be wrong he'll blame me if he gets p/m again. I will look at dehumidifiers. Thank for your input.

Don't bring outside air in.

How big is the room?

How many lights?

Sencha said:

Don't bring outside air in.

How big is the room?

How many lights?

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Ya that could help what size room 20 ft by 20 ft. Lights 1-1000 and 1 600. The electrical out lets won't take 2-1000. The plants are in the middle of the room so ya can walk all the way around the tables oh and we are growing in coco in 3 gal pots. I should know better thanks.

I picked up a dehumidifier today I hope this does the job. Thank You for the suggestions.