Same here, gravel floor basement. I actually had to start putting concrete down because my cats were using it as a litter box.All except swag a dose but I manually dose alk only so it's not like it's a big deal to measure it. I must admit I'm getting pretty darn good starting a syphon without getting water in my mouth. The worst part in when I'm not paying attention to the hose and end that goes in my mouth is covered with cob webs and dog hair. Give me dirty tank water any day.
Most of my maintenance is done in an unfinished basement for those of you squeaky clean folks that think having dog hair and cobwebs is nasty. Well it is but I live with it