DUAL GRAVITY FED - INSTALLATION
-6-
Two p ump s wo uld b e use d in this a p p lic a tio n. O ne fo r p ump ing the wa te r fro m
the p o nd sie ve to the filte r a nd the se c o nd p ump fo r p ump ing wa te r fro m the filte r
b a c k to the p o nd . The ma jo r proble m with this se tup is tha t it is a lmo st imp o ssib le
to b a la nc e the running sp e e d s o f the two p ump s. This se tup c a n c a use the
g ra vity fe d filte r to o ve rflo w o r ha ve the wa te r e mp tie d fro m the filte r.
Ne w Dua l Gra 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 ump s to e q ua lise .
The 4” (110mm) 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 ma nd ing unit (it is re c o mme nd e d tha t the p ump
fro m the C e tus ha s a hig he r fl o wra te tha n the p ump fro m the fi lte r.
This me 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 imp 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
To Next Page
