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21-05-2004, 06:52 PM | #41 | |
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21-05-2004, 07:04 PM | #42 | |
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i agree tat 4 a venturi skimmer, no pump is too strong as long as the skimmer dun overflow... but let me tell u... it will never overflow..regardless wat type of p/p u use. i can tell u if u use a 100000000l/h p/p, it will oso not overflow. of cos when i say 100000000, i'm exaggerating. if u use such a p/p, i believe many parts of ur skimmer will give way 1st. do u know how a venturi works?? do u understand the principle behind its operation?? let's discuss n share.. |
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21-05-2004, 10:49 PM | #43 |
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hehe... very interesting topic. can i know more? all i know is that the more bubble the merrier.
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21-05-2004, 11:00 PM | #44 | |
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21-05-2004, 11:03 PM | #45 | |
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21-05-2004, 11:29 PM | #46 | |
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22-05-2004, 12:02 AM | #47 |
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ok i'll explain in simplicity then..
fr any weipro skimmer, the black connector which link the p/p outlet 2 the skimmer inlet wif a T-off(air tube) is called an eductor. in tis eductor, u will c a restriction(smaller diameter, nozzle). at tis nozzle, u will c a T-off, connected 2 a air hose/tube in tis case. wat happens is water fr the p/p will pass thru the eductor. when the water is at the nozzle(juz b 4 passing thru), it will experience high pressure but low velocity. when the water passes thru(juz after the nozzle), it will experience high velocity but low pressure. it is tis change of state will cause a vacuum at the T-off. tis vacuum will "suck" air thru the hose/tube, n will travel together wif the water. the whole process is called the VENTURI effect. now, at a certain nozzle diameter, there will b a max flowrate 2 it. 4 e.g., a 10mm nozzle will allow a max flowrate of 2000l/h. manufacturers will give their recommendations accordingly. so if u gonna use a 4000l/h p/p 4 the above eg, it will still draw the same amt of air. UNLESS, u change the size of the nozzle n tubing. understand??? |
22-05-2004, 12:12 AM | #48 | |
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22-05-2004, 12:22 AM | #49 |
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u r almost there
if say, 4 safety factor, manufacturers recommend 2000l/h p/p n the max flowrate 4 tat eductor is 2500l/h, then using the latter will give u more bubbles. |
22-05-2004, 01:49 PM | #50 | |
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