First, I've been turning to TFP for several years, so you guys here are the only ones I trust for advice about my pool. I have a 16' x 48" Summer Waves Pro (metal pole frame) pool, approximately 5,246 gallons, with a through-the-wall skimmer. Life happened last year, and I never got my green swamp clear - never set foot in the pool. My husband & I drained the pool today and will refill it with city water soon (I need to get a new patch kit and replace some patches as well as put new ones down - it's so much easier with no water in the pool). In the past (last year excluded), I've done well with the liquid chlorine and daily testing. However, we inherited my mother-in-law's camper and campsite about 3 hours away. We'll be gone a lot of weekends, long weekends and occasionally longer this summer. I'm wondering how using pucks during those times will affect everything else. I know using them all the time will raise CYA. I guess my question is, do I bring CYA up right away (I'll be home for at least the next 2 weeks to use liquid)? When we filled the pool new, I wasn't using the pucks, so I'm just not sure what, if anything, I need to do differently. Thanks in advance! Everyone here is so helpful. Oh, I also have the TF-Pro test kit.