" I am really pleased with this filter system, it took me about 25 minutes to install and it works really well. The only point I would like to make is, download the instruction manual to your phone as well in case it get wet lol. If you are not too sure about drilling the hole for the extra tap, you should get someone else to do it or just fuss up and do it yourself its only a hole! Well for 15 minutes work it really is worth it. I definitely recommend this system to everyone who values their health! "