The Great White from Dalua Australia is one of the最佳价值蛋白质撇渣器in the reef aquarium hobby and now Dalua is doing the same for controllable DC skimmers. Thenew Great White DC skimmeris much more than just a DC powered version of the original sporting ten improvements to the design for even better performance and ease of use.
Building on the success and widespread popularity of the original Great White skimmers, Dalua doubled the number of sizes in the range and developed four different models of the Great White DC. The larger GW10 was probably the most popular size in the original line and we’ll be comparing it to the similarly sized Great White DC12 to see all the ways that the new models have been improved.
1.直流针头泵
包括DC泵的包含是最明显的新的改进，以改善性能，更安静的操作和减少功率。较大的针头比类似尺寸的交流泵还吸收更多的空气，因此还有更多的泡沫来携带所有不必要的营养。
2.控制器W/功能
Just because最多DC驱动的泵是可控的，实际上，制作不可控制的一速直流泵实际上便宜得多。您仍然会获得减少功率和无声操作的主要好处，但是您需要一些电子设备来使其加快或逐步降低，或者在一段时间内进入暂停/饲料模式。
3. 3D打印的文丘里阀
Besides the controllable needle wheel pump, perhaps one of the most interesting new improvements to the new Great White DC skimmers is the use of a 3D printed venturi valve. By printing their own aspirating mechanism for each pump and skimmer model, Dalua can do a lot more fine tuning to the performance of the skimmer getting the ratio of the air/water mixture just right.
4. Larger Thumb Screws
大白色直流撇渣器底部包含的拇指螺钉要大得多，而且更容易处理，尤其是对于像我们这样的大香肠手指的人。
5. Bayonet Neck Fitting
新的刺刀锁定颈部非常平稳且易于吸引和脱离，这将使拆卸和更换杯子比以往任何时候都更加容易，并且可以用一只手在GW12上进行。
6. Reduced Clearance Required
The GW12 DC is about one inch shorter than the GW10 but due to the new bayonet neck fitting there’s even less clearance required to remove and replace the collection cup. The GW10 is 23 inches tall but requires an extra inch of clearance, 24 inches or 60cm in total while the GW12 is 22 inches tall, but only needs 22.5″ of clearance; this sounds like a small difference but it’s the best approach to pack a ton of power into a modern, compact all in one sump for smaller reef tank setups.
7.脖子较宽
GW12DC上颈部的宽度可能仅比GW10宽半英寸，但表面积增加了30％。颈部在常规的海水盐度环境中效果更好，使其能够产生较厚的泡沫，但最重要的是，在浏览海洋水族馆水方面应该更加稳定。
8. Larger Reaction Volume
The wider neck is not limited to the collection cup as the conical portion of the body is also wider in cross section at the top. This wider path also creates a larger reaction volume for more reaction time, and a skimmer that is generally better at processing a foam of air & water.
9. Larger Drain Hole
由于Dalua Great White DC 12可以产生比以往任何时候都要多的弹射器，因此更大的排水孔将使用户更简单地使用蛋白质撇渣器垃圾收集器，从初级过滤区域远程使用。
10.集成空气消音器
The new integrated air silencer is a circular ring that forms the bayonet where the cup locks into the body of the skimmer. Unlike typical small air silencers the circular design is concentric and reduces the noise of the air intake which is more important than ever since the GW12 pulls in an estimated 50% more air than its predecessor.
