Greenhouse condensation

Cleared greenhouse and staging and found 4 drainage holes down the side ,where water now runs ,filled with sealant and all along edge, you watch no rain for weeks now I want to see if job done

 

So my ever present water problem is I hope now resolved, went up on my bank by the greenhouse a couple of weeks ago, and spotted a pool of water behind the greenhouse. I just did not think it was coming from the back, so I have siliconed all the back breeze block joints, I think it was just soaking through small gaps, waiting for rain now to test my latest theory.