Water leak

I called my dealer's Service Manager yesterday and told him about the issue I was having. He said it would be better if I just hand tightened the fittings under the sink and pressured up the system because the soonest I could bring the trailer in was April 21st. I went ahead and made the appointment but followed his advice. Where I store the trailer has a source of city water. I found no more leak after following his instructions so hopefully I'm good to go for now. I'm keeping the appointment just in case I get another problem to crop up and I cant fix it myself. I will cancel on the 20th if nothing else comes up. I'm hoping I can finally take the maiden voyage the first week in April.