[PSUBS-MAILIST] patience pays

Thu Jul 21 10:11:49 EDT 2016

Alan,Any plunger type valve is susceptible to failure from debris.  A ball valve rotating eliminates that.  But, as you say a filter would do the job also.  Hank 

    On Thursday, July 21, 2016 7:01 AM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Hank,I am pretty sure that putting some sort of filter on both sides of the ballastvalves is a Germanic Lloyds requirement. It makes sense as when you release air, anything floating in your ballast tank would get funnelled uptoward the valve. Alan 

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On 22/07/2016, at 12:03 am, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Alan,Don't you just hate that!  I have to back pedal a bit about solenoid valves also.   They do work fantastic, no doubt about it, but you threw a little scare into me that stuck with me.  You mentioned putting a filter in to protect the seat.  You have a very good point there, those valves could easily get obstructed by debris.  On my last dive I noticed how much crap gets blown around them.  I am actually planning to replace them with ball valves.Good luck with the motorHank 

    On Thursday, July 21, 2016 1:45 AM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Thanks for the update Hank,look forward to any videos you take.I have had to be a bit patient also. I burnt the motor out on my latheabout 2 Months ago possibly due to it's fan spinning loose & it overheating.They told me a replacement motor was coming in 1 week. 6 weeks later it turned up.There were 2 tabs across the terminals that weren't on the original motor.I queried this with the agent, who contacted China for an answer.Leave them on & wire up the same. So I did & "bang" tripped the circuit breaker on thelathe as well as on the house. Now after further communication to China I get "No, takethe tabs off & it will be OK".  I am not confident come tomorrow I will have a working lathe.So brushless motor housing, light housing & solenoid operated ballast valve projectshave been on hold.Cheers Alan

      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Thursday, July 21, 2016 8:22 AM
 Subject: [PSUBS-MAILIST] patience pays

After three days of sanding buffing and polishing the conical seat, I have the port fitted.  The window frame warped a wee bit from welding even though it is 3 inches thick.  I had the port bedded with approximately .020 in of high compression resin, but was not comfortable with that.   Now the port sits on the steel seat directly.  My port is .125 inches to thick so I will machine that off as soon as I have the hatch out of the lathe.
I have the hatch in the lathe to machine a temporary attachment that will hold the hatch true on the land while it rotates with lapping compound between the land and hatch.  I will rotate the hatch with a hydraulic flange facing machine.  
I have postponed my deep test of Gamma so that i can test Elementary 3,000 occupant sphere to 980 feet  at the same time as testing Gamma.  It is a big effort to get my barge to the lake for testing, so I can test  both subs with one barge move.  The barge is on the trailer ready to go and Gamma is also on her trailer ready to go.  Hank
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