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How to set同軸上落

benng 文章: 45

1 于 2004-04-10 01:10      I would like to set up a new tank to replace my existing 24 inches reef tank. The dimension of the main tank is 26 inches length x 20 inches deep x 24 inches height. The dimension of the sump tank is 20 inches x 18 inches x 15 inches. I am still considering which kind of piping method between 2 tanks, 滴漏槽 + 1 up flow pipe + 1 down flow pipe, or 同軸上落. I am just thinking滴漏槽 will occupy some space inside the main tank and my main tank is very small. Therefore, I perfer 同軸上落. I saw the pervious posts that 岩礁園丁 is using同軸上落. Do anyone has more information about how to set同軸上落? Thanks.

岩礁園丁 冇離正經 文章: 6138

2 于 2004-04-10 01:59      要造同軸上落水, 很簡單, 只要能買到關鍵性的喉件, 即圖中右上角那個同軸90度外曲內分叉(呢個名係我改的, 因我唔知正式名係乜), 就可以用在傳統的沙缸上. 專賣好野 包冇搵笨七

benng 文章: 45

3 于 2004-04-10 09:16           Thanks 岩礁園丁 ! As you said, the most critical part is the 同軸90度外曲內分叉. From you post, it seems that you didn't use this part in your tank. Is it because you couldn't find this part in either HK or Macau? If I drill a hole at a normal 90度曲 and stick a small pipe through this hole by using epoxy, do you think it will work out? I never use sump tank. I don't know how large force down flow water causes. I am afriad that it will cause this DIY part falling apart.

岩礁園丁 冇離正經 文章: 6138

4 于 2004-04-10 13:25      benng : 因我的過濾系統是整套設計的, 不需用到這個喉件. 其實, 你看我套系統, 看似簡單, 但做工要求非常嚴緊, 每部份的尺吋要配合得很準確, 極難掌握, 所以至今仍無人彷效, 亦因此, 我才建議你用這個喉件來造一個傳統的沙缸, 工程上較易掌握. 你說用普通90度曲來改, 理論上係可以的, 但質量上恐怕會很脆弱而漏水, 我認為都係用原裝的好, 尺吋就用吋半落水(外), 4分上水(內)吧. 專賣好野 包冇搵笨七

benng 文章: 45

5 于 2004-04-10 14:38      Sorry. I have some confusion. Is that mean 同軸90度外曲內分叉 is a standard part? Would you advise where I can find it? I proposed DIY it because I think it is not a standard part. Thanks.

岩礁園丁 冇離正經 文章: 6138

6 于 2004-04-10 15:41      無錯, 係原裝的, 但屬旱有貨品, 一般五金舖應該唔會有. 你可列印上圖, 去一d較貨品齊全的喉泵行找找, 例如好多香港魚友熟悉的廣東道929號, 利可保工業公司, 或同類的店舖, 專賣好野 包冇搵笨七

benng 文章: 45

7 于 2004-04-12 09:30      O! I understand now. I will go to 利可保 and check whether she has this part. I have other questions. At the top of the pipes, you have a transparent part for down flow. Is it also a standard part I can find it in 利可保? I studied other posts. At the down flow pipe, most of them added a noise reducer (made by 2 pcs of 90度曲) to reduce the noise. But if I used 同軸上落, I have no hope to add noise reducer. How about the noise in your tank? Thanks!

岩礁園丁 冇離正經 文章: 6138

8 于 2004-04-12 15:03      個透明杯係我以前個OTTO濾水器的外殼, 我用黎改裝的. 同軸上落水的落水口, 因中間有條軸(即上水喉), 落水唔會形成旋渦, 即扯唔到空氣, 所以, 唔會有噪音的. 岩礁園丁 修改于 2004-04-12 15:05 專賣好野 包冇搵笨七

海洋管理員 文章: 198 來自: 澳門--氹仔

9 于 2004-04-12 18:37      係澳門美副將(藝晶)有同軸上落買,不過都好似幾貴!

benng 文章: 45

10 于 2004-04-12 22:18      Thanks 岩礁園丁 Great! There is no noise at the down flow pipe. However, I think I need to buy and DIY all requested parts before I decide to use 同軸上落 and order the new tank.. Thanks 海洋管理員 Unfortunately, I live in HK and cannot go there to buy this part. I will go to 利可保 to check this part.

benng 文章: 45

11 于 2004-05-10 15:50      I went to 利可保 and wanted to buy the 同軸90度外曲內分叉 for setup 同軸上落. However, he had no idea about this part. Do anyone has idea where I can find this part? Thanks! Ben

iczfirz "challenge" 文章: 14186 來自: 我回來了

12 于 2004-05-10 16:43        其實驚唔驚缸既軸位如果一有溜水.. 咁就會好快成個缸d水溜晒.. 好得人驚 問題或承受過 不相信拋下過 最後決定一雙肩膊別太肩膊 三十一畫：此數大吉，名利雙收，漸進向上，大業成就。（吉）

岩礁園丁 冇離正經 文章: 6138

13 于 2004-05-10 17:05      擔心得好, 呢個問題的確要注重, 但只要喉件品質好, 手工專心做好, 就無問題的, 吋半牙咀, 可以頂得好大水壓的. 建議用日本牙咀, 美國膠皮做墊圈, 就可保証永不漏水. 專賣好野 包冇搵笨七

iczfirz "challenge" 文章: 14186 來自: 我回來了

14 于 2004-05-10 17:17        最怕係軸位係沙缸或主缸受到碰撞或被石靠住.. 槓桿原理.. 全部力都受晒係個牙咀接位.. 咁就好弊.. 所以手功同用料都要好好先得.. 唔係一有乜依郁就同爆缸冇乜分別.. 問題或承受過 不相信拋下過 最後決定一雙肩膊別太肩膊 三十一畫：此數大吉，名利雙收，漸進向上，大業成就。（吉）

benng 文章: 45

15 于 2004-05-10 17:46      I also have a same concern. However, I ready don't want to use 滴漏槽 because my tank is very small (24" x 24" x 22"). In my original plan, I want to use 2 individual pipes for upflow and downflow without 滴漏槽. But, in this case, I have 2 chances to have that big problem and will be killed by my wife. Therefore, I want to set up 同軸上落. I am planning to not only use 日本牙咀 and 美國膠皮做墊圈, but also use epoxy to cover all joints. The epoxy I am talking about is similar to the epoxy that used in the water pump. I will setup a DSB and these epoxy will be covered by DSB. Right now, the most critial problem is I cannot find the 同軸上落 part. I may need to DIY it but it causes another risk as well.

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