Hi! I am looking for some advice from someone who may well of been in a similar position to this. When I started four years ago I spent the first couple of years building up the round. I went every MONTH... But, a few customer's thought this to regular. So, I'd clean them BI-MONTHLY... The round has now grown and I do the Monthly customers every 6-7 Weeks and the Bi-Monthlys every 12-14 Weeks.... Come spring I am feeling I either need to carry on the way I am or do all of my customers every 8 weeks... If any of you experienced Windy's went through this situation your thoughts would be most welcome. It is always hard to know what do to for the best!!!!! Cheers and A Happy New Year to ya!!!!