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 Quote:
Originally Posted by SCVkoiboy About 2 years ago, I bought a Dragon pump and installed it with my new pond. The Dragon pump was sucking in air, but I wasn't sure if it was my pipes or the pump. I contacted William Lim at a koi show and he told me he had problems with his Dragon pumps whereby the molding process failed to inject enough material and, therefore, the rim of the basket was sometimes uneven and air may get into the pump due to an uneven lip. He told me to check the rim and get back to him. I checked the rim and noticed that the inside of the rim was lower than the outside (I placed a straight edge across the center of the basket and noticed the gap on both sides along the inside edge of the rim). Is it supposed to be that way or is that a design flaw?
I took the pump to William Lim's shop and he tested it by placing the pump below a large container of water so the water would flow down towards the pump about 2 feet. The output side was only a foot or so and just squirted out into the basin. He said the pump was fine and did not suck in air (I question his method for testing). I bought a new gasket and a new union as suggested by William.
When I got home and hooked it up, I used the new union to run a pipe straight into my settling tank with a single pipe (no joints). The output was hooked into the same old pipes. This, I figured, would tell me if it was my pipes or the pump. The pump again was sucking in air.!!!!!! I then hooked up a Performance Pro pump to the exact same pipes (original intake and output) and it runs fine. NO AIR!!!! When I contacted William Lim, he refused to warranty his pump and said his pump worked fine.
Has anyone else had a problem with Dragon pumps or dealing with William Lim? I feel like I got scammed!!! I think he intentionally hooked up the pump so the water was gravity fed to the pump and pumped straight out thereby creating no strain or pressure on the pump. In the real world (at least my system), the pump had to push water through a bead filter and through 50 feet of pipe with a 5 foot rise. I think the pressure on the output side may have something to do with the reason the air gets sucked into the basket area. Does anyone have any thoughts about this? I question William's honesty and integrity for another reason. When I was at his shop, he hooked up his pump and a competitor's pump to demonstrate how his pump is better (or as advertised). They were each hooked to a flow meter. His pump did pump better than the competitor, but when we looked at his specs for his pump, the flow meter indicated his pump did not pump as he advertised. He tapped the flow meter and told me it was broken! How stupid do I look!
I will never buy another product from William Lim. I don't really know if his products are good or not and I am open to any suggestions about my pump problem, but I believe he has horrible customer service.
Has anyone else had a problem with him or his products or is it just me? If it is just me and someone can explain my pump situation, I will gladly apologize to William. Until that time, buyer beware!! |
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Another view on William Lim customer service. Yes an apology may be due.
Tom C 
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King of PondPetUSA
Join Date: May 2004
Posts: 485
Something about Mr. William Lim
I know some of you think I was hard on William on his "Pick on it" post. But William want to know what people think, so I told him.
With all of that said, lets talk about Mr. William Lim.
William build a pond about 10 years ago for one of my customers. A few weeks ago the Sequence pump went out on the pond. Yes the pump was 10 years old. The customer needed a new pump ASAP because this pond is way over stocked, and all I had was Performance Pro pumps in stock at the time. I went over and the customer wanted a Lim pump. So the next day we had a Wave pump on the pond. The pump was put on and the customer loved the extra flow. Four days later I got a call, the pump wasn't pumping like it was. On the phone to William and he said it couldn't be the pump. I went back out and played with the pump a little and the flow was back. Three days later I got another emails saying the flow is about half again. Back on the phone to pick Williams brain. He told me check the voltage coming out of the box that the pump is hooked up to, he also said he thought something might be in the drain lines. I want back out to the customers place and the voltage was fine. Next thing I know William is making a 1 1/2 hour drive to bring a larger pump to try to suck the stuff out of the drain. We hooked up the pump and leafs rocks and other things came out. He left the pump run over night on it, and then I went back the next day to hook up the other pump. The customer also cleaned out the drains with a plumbers snake and pulled out a lot more stuff. Now the pond is running great again.
I just wanted to let you know what kind of customer service William Lim does have. It was after dark the night he came out with his wife and he went
way out of his way for me and a customer of his. So my hats off to you Mr William Lim and think you.
Tom