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I have a MCH-11. It,s the single phase version of the MCH-13. Everything else is the same. If budget permits, the bigger machine is the wiser choice. The portable machines were made so compact. Despite the high speed of the machine, it still takes almost half an hour to fill a standard AL80...

Check out this thread. Trip Report-Philippines-Puerto Galera-El Galleon/Asia Divers-April 1-14, 2019

Most DiveMasters analyze other divers and gets their first impression based on your appearance, type of gear, actions and inactions, level of anxiety etc. If that's not enough, usually your first dive is enough to show your skill level. Good bouyancy control and trim is enough for the DM to...

One reason is to protect the interest of the Roll-on Roll-off ferry service and those that benefit from it whether directly or indirectly. These ships won't make much money ferrying cars and trucks. A big chunk of their revenue would supposedly come from passengers. At present, more people are...

This is a very useful tip.Thanks I anticipate to have around a 100 running hours on the compressor for a year, so 80 hours is already close.

Greetings! I am seeing conflicting recommendations for compressor oil change intervals for the particular model MCH 11-13. 50 vs 250 hr is a big difference in oil cost and damage to the machine if not done correctly. I would be glad to hear your hands on experience with these machines as the...

Just remember the dive theory about the balloon that was always used as an example. There are 3 ways that the balloon will increase its size: 1. Reduction in the ambient pressure. 2. Increase in the temperature of the gas inside the balloon. 3. Both 1 & 2 are applied. Of course the change in...

The older Legend LX with the gold that I have known, the octopus is still colored yellow having the internals exactly the same as the Titan LX. I'm not aware of a legend version having both 2nd stages in gold finish.

Just as I've expected.

I thought pro level begins with the DM level.

Wouldn't it be more reasonable to assume that a high percentage of the divers that invested the time, effort and money to reach rescue diver level will upgrade to at least the DM level?

You don't have to always carry enough weight on your belt. You can even dive without a belt. However, having a belt gives you more flexibility for a better trim and dealing with tasks requiring you remove your bcd becomes easier. Its easier to have a belt when doing skin dives. You might as well...

I inquired yesterday from my LDS for the gasoline version MCH-13. They want 1100 US$ extra for the gas version. Although Ray mentioned same price from him for the gas or electric version, shipping and taxes will make the prices higher compared to buying it from my LDS. The ending, I ordered the...

There are advantages in having a weight belt. You can distribute the weights. Any weight you put in the pockets transfers the weight to the BCD and to whoever will lift the BCD with the tank and weights all attached as one. When you need to ditch weights in an emergency, you don't need to drop...

Hi John. Good points you mentioned. I will be using the tank mounted pumps as a transfer pump to minimize the spillage and/or fumes. Its a bit slow using the common 79 L/hr pumps might take around 4 mins for a 4 Liter transfer and 1 minute using the 255L/hr Type-R pumps. Anyway for now, 2 hours...

Hi Lain, I'm not good at wires. But I can get my way around engines, fuel tanks/pumps, frames and the like. For my families intended use, I might just be running the compressor for the 6 Al-80 per day. Do you have a figure how much fuel does the the GX 240 consume in an hour? I can buy used...

Hi Pao, I envisioned going that route in the future if all goes well. But for now, the goal is for me and my 2 sons(both certified) be able to dive, gain experience and complete the dive log requirements of at least 100 dives for all 3 of us. During the process, we may offer discover local...

Hi Lain, I have also seen a lot of your posts on other threads and other sites. They have been very helpful as well. I am really contemplating now on getting a whole set vs just the block/pumping unit, either gas or electric. The LDS quoted me a price difference of US$ 1500. I think I would not...

Originally on the title it was MCH 11-13. But since my options were only single phase or gas, I deleted 13. I will find ways to isolate or minimize the noise whatever I come up with. By the way, through searching, I have gone through some of your other post here and on TDF that helped me to...

To be exact, the location will be Gloria, Oriental Mindoro. I purchased 6 AL-80 from Aquaventure white tip in Puerto Galera but the compressor block/pumping unit will be sourced overseas at a lower price. Frame and motor/engine will be sourced locally. Yes the unreliable power supply got me...