Sorry for your problem. Seeing wrench marks on the CSV125 and seeing it kind of mushroomed out on the end, I am afraid it was installed too tightly and the leak maybe from a crack in the plastic. Being as it is only a year old, and even though it maybe installer error, we will send you a new valve under warranty to replace it. Us a little teflon tape then add some teflon paste over that so you won't have to get it so tight next time. Call our office, reference your order number or give them your name. They will send you a new CSV125. All I want is to know if it was cracked when you get the old one off please.
Thanks
Cary