thanks , makes sense , i was trying to figure out how to keep the upkeep on them before they had gaping holes , but seems like ya cant until its got a hole . thought i was doing something wrong but this vid cleared it up. side note - short direct video addressing what the title of the video is and what to do , not a long winded 20min video where the last 30secs hits the topic. as such ya earned a sub keep up the good work