kami kasi medyo mahina ang water pressure, so nawasa man kami, we still use a water pump. pinag iisipan nga namin kung mas makakamura sa kuryente if we bought a bigger tank.
imho, it also depends how long you can draw water from deep well. if you invested 100K for the setup, tapos after 2 years wala ka nang makuhang tubig, obviously lugi ka.
ung worst na nangyari sa amin, there was mud coming out the faucet...there was one time din na parang me sebo naghalo sa tubig. needless to say the distilled water stations in our area made a killing.
either way, mud or not mud, i'd boil tap water first.