Evolution Aqua Cetus sieve, Installation And Instruction Manual, Page: 7 / 8

DUAL GRAVI TY FED - I NSTALLATI ON
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Two p um p s wo uld b e use d in this a p p lic a tio n. O ne fo r p um p ing the wa te r fro m
the p o nd sie ve to the
fi
lte r a nd the se c o nd p um p fo r p um p ing wa te r fro m the
fi
lte r
b a c k to the p o nd .
The m a jo r pro b le m
with this se tup is tha t it is a lm o st im p o ssib le
to b a la nc e the running sp e e d s o f the two p um p s. This se tup c a n c a use the
g ra vity fe d
fi
lte r to o ve r
fl
o w o r ha ve the wa te r e m p tie d fro m the
fi
lte r.
Ne w Dua l G ra vity Fe d Syste m .
Fig ure 9 b e lo w sho ws ho w this syste m c a n b e insta lle d with a b a la nc e p ip e to
a llo w the
fl
o w d iffe re nc e in p um p s to e q ua lise .
The 4” (110m m ) p ip e b e twe e n the C e tus a nd the fi lte r will a llo w wa te r to p a ss in
the d ire c tio n o f the hig he r d e m a nd ing unit (it is re c o m m e nd e d tha t the p um p
fro m the C e tus ha s a hig he r
fl
o wra te tha n the p um p fro m the
fi
lte r.
This m e tho d o f insta lla tio n e na b le s the use r to p re
fi
lte r the p o nd wa te r thro ug h
the p o nd sie ve p rio r to b e ing d e live re d into the ne xt sta g e o f
fi
ltra tio n.
A typ ic a l g ra vity fe d syste m is sho wn b e lo w in
fi
g ure 7
To im p ro ve a typ ic a l g ra vity
fe d
fi
lte r, a g ra vity p o nd
sie ve c o uld b e insta lle d p rio r
to the g ra vity fe d
fi
lte r a s
sho wn b e lo w in
fi
g ure 8
Fig 8
Fig 9
Fig 7