( ( The concept ) ( ( is ( that ( ( each ( time water ) ) ( pulses ( ( ( ( through ( the system ) ) ( ( -LRB- ( ( after ( ( a toilet ) ( ( ( is flushed ) , ) ( for example ) ) ) ) -RRB- ) ) ( ( the ( water level ) ) ( will ( rise slightly ) ) ) ) ) and ) ( wastewaters ( will ( wash ( against ( the ( bottom tablet ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN concept)) (VP (VBZ is) (SBAR (IN that) (S (NP (DT each) (NN time) (NN water)) (VP (VBZ pulses) (SBAR (S (S (PP (IN through) (NP (DT the) (NN system))) (PRN (-LRB- -LRB-) (SBAR (IN after) (S (NP (DT a) (NN toilet)) (VP (VBZ is) (ADJP (JJ flushed)) (, ,) (PP (IN for) (NP (NN example)))))) (-RRB- -RRB-)) (NP (DT the) (NN water) (NN level)) (VP (MD will) (VP (VB rise) (ADVP (RB slightly))))) (CC and) (S (NP (NNS wastewaters)) (VP (MD will) (VP (VB wash) (PP (IN against) (NP (DT the) (JJ bottom) (NN tablet)))))))))))) (. .)))
The concept is that each time water pulses through the system (after a toilet is flushed, for example) the water level will rise slightly and wastewaters will wash against the bottom tablet.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (NN water)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (VP (VBN been) (VP (VBN used) (PP (IN for) (S (VP (VP (VBG cleaning)) (, ,) (VP (VBG washing)) (, ,) (VP (VBG flushing)) (, ,) (CC or) (VP (VBG manufacturing) (NP (NN wastewater))))))))))))) (. .)))