#Sea swirl wavemaker full#

Wide x 28in tall and has a center trapezoid shaped overflow. Hello, I had a question about flow in my tank. Rio Pumps (for poor service factors), no thanks to Power 'No' to Wavemakers, just 'OK to Powerheads, nay to Related FAQs: Marine Circulation 1, Marine Circulation 2, Marine Circulation 3, Marine Circulation 4, Marine Circulation 5, Marine Circulation 6, Marine Circulation 7, Marine Circulation 8, Marine Circulation 9, & FAQs on Circulation: Rationale, Designs, Installation/Arrangement, Plumbing,Īeration, Pumps, Plumbing, Make Up Water Systems, Sumps, Refugiums, Gear Selection for Circulation, Pump Problems, Surge Devices, Is Enough, Powerhead Impressions by Steven Manifolds, Aeration, Water Flow, How Much Wavemaker Impressions, by Steven Pro, Plumbing So before you say there is no such thing as soft start you should find out if you really know what your talking about.Maker/URL, power use, flow, head, fitting size), by James Gasta,Ĭhart (by maker/URL, power use, flow), by James Gasta, Circulation, Inexpensive The motor is only allowed to start when the ac current waveform is at the zero crossing point (transitioning from negative to positive and vice versa).

the starting current to the coil is reduced for a very short time and allowed to rise to its normal value.Ģ. All soft start circuits do is (by two methods) reduce the forces with which these two parts smack together so they last longer.ġ. So soft start cannot stop these powerheads from chattering, in fact the more you reduce the voltage to them the more they chatter. So they loosly couple these two parts so the inertia of the armature can carry it around. The armature and the impeller are not rigedly coupled together.This is because the water resistance would add too much resistance to the armature movement and the motor would never start and just vibrate back and forth forever. That is why all these powerheads click and chatter on start up. Well this armature has a definite weight and doesn't follow the flip flopping magnetic field very well in the begining and by the time it starts to move one way the magnetic field has changed and is asking it to move the other. The armature of the motor is a permanent magnet that is supposed to rotate 360 degrees and keep on going around and around. When the alternating current flows through the coil it produces a flip flopping magnetic field. This is because the coil of the motor is just a two pole coil. If you inspect one of these impellers you will see that the blades are flat, straight up and down, not angled like a true pump impeller should be. Most people are confused as to what soft start for these cheap little motors is so being an expert on this particular subject I will try to clear up the confusion.īecause the constant on and off that wavemakers produce would in short order destroy the impellers of the pump. sorry it was so longĪs someone who has researched and built soft start circuits for powerhead motors I think the people that say there is no such thing as 'soft start' for these motors don't know what they are talking about. the inrush of amps on powerhead motors is so small that no damage would occure.

how about well pumps? they stop and start all the time. if it were true that single phase motors that stop and start frequently would burn up eventually, is wrong.

#Sea swirl wavemaker full#

then it switches over to the other set of leads and runs at full RMP. where the motor starts on one set of leads at a low RPM to cut back on the inrush of amps. the only time you need to have soft start is when you have a high horse power motor drawing alot of amps say around 6000 if it were hooked up 'across the line' if you have that situation that many amps will blow something up so there is another method of wiring and its called wye-delta closed transition starting. there is no such this as a soft start on a single phase motor, soft starts are used only on 3 phase. Well, being that my company sells pumps all kinds big and small.