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Andrew Dwyer

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Posts posted by Andrew Dwyer

  1. Your license plate story reminds me of a little joke I played on a colleague. 

    He had brought a license plate into the engineering shop ( where we both worked, okay, attended ! ) to drill a couple of holes through the Perspex.

    Job done, he placed it under his work bench until home time.

    I noticed the letters DLE were first on the plate and my childish sense of humour realised that by placing an I in front would “ cleverly “ sum up his work ethic !!

     

    6 months later his neighbour pointed out his unusual plate, luckily he didn’t get stopped and saw the funny side.

     

     

    • Like 1
  2. They set up a big tent in between the 32 Highway and Frontage Road near the Mall in Ayutthaya.
    As I traveled on frontage road I saw about 10 BIB’s lined up for a photo shoot with a guy dressed as a huge bear in the middle ??
    On my way back down the same road a car pulled to an abrupt stop in front of the tent and the following mc rear ended him and the rider catapulted over the roof of the car !!

    All in all doesn’t give me much faith that an increase in police presence is gonna reduce accident figures [emoji848]

  3. My first day at school.
     
    Lovely Mum gave me a kit-kit for my elevenses & wrote my name on the wrapper. I couldn't read what it said, but I knew it belonged to me.
     
    Benito, my classmate, was a very small Italian boy, who had a hole in his heart. One day he pooped himself, & if my memory serves me right, I saw it come out of the bottom of his trousers.
     
     

    I had a school friend who had been diagnosed with a hole in the heart !
    Turns out when he had the x-ray he had a polo in his shirt pocket !!


    Sorry [emoji20]
    • Haha 1
  4. If the pulsing bothers you when showering (eg. if the resultant temperature varies too much) simply open a tap slightly, and the combined flow should allow the pump to run continuously.... but of course you will waste some water...

    It doesn’t bother me really other than the fact that I don’t think it was happening before I drained it and lifted it together with the tank and wonder what has changed ?
    I don’t see it being detrimental to the pump as since I’ve noticed it I’ve realised that the neighbours do the same.

    Only on cold water !!, shower heaters are next on the list, after painting the house, rerouting the drain pipe from car port roof, fit sunshades to the sala, etc etc
    • Like 1
  5. I’m FB friends with a couple of friends I went to school with ( and have known since age 4 ) so via conversations with them I remember the names of other kids in my class. Although I doubt if I would remember if it were not for them.

    Some of my earliest memories are probably based on photos my father took and tend to confuse my memory banks.
    I can certainly remember many things from my primary school days ( 4 till 11 ) but not sure as to my earliest memory .

    One of my earliest was probably getting a big plastic cannon for Christmas that shot out cannon ball sized plastic balls ( probably only tennis ball size but to my childs eyes !! ) was maybe 4 or 5 years old.

  6. I just treat it like other home maintenance like trimming the trees.  Every two or three years you need to scrape the lower walls of the house down to concrete and repaint, preferably during the height of the hot season when the moisture content in the ground and concrete are at their lowest.  We just finished this year.
    When it starts peeling again - scrape, paint, repeat...  It's elbow grease and some paint. 

    Would you recommend primer ?
  7. Pumps produce both pressure and flow... the higher the flow rate, the lower the discharge pressure, but as the flow is choked back by throttling the outlet somewhere, the pressure increases, until there is no flow and the pump is what's called "dead-headed".   This pressure vs. flow relationship is called the pump curve.
     
    The pressure switch is designed to shut off the pump when it operates at a low flow to prevent it dead-heading since it will continue to run but with no flow to cool it, it will rapidly overheat and damage itself.  
     
    The difference in pressure between low flow and no flow (say 5-10% or rated capacity) is usually very flat, so the setting of the pressure switch to shut off the pump is very critical.  Set it too low and the pump will cycle, set it too high and the pump will never switch off (and damage itself).  But you can usually improve the factory settings, and allow cycle free operation at lower flowrates than "as supplied".... but you do risk damaging the pump.
     
    One problem especially here in T/L is that the supply voltage can vary a lot.. higher voltage make the pump run faster (and so generate a higher pressure, which makes it more prone to cycling), or if the voltage drops a little. the pump will run slower and can never generate enough pressure to shut itself off - i.e. overheat and damage. 
     
    If you do suffer with low voltage, you can adjust the switch setting to make it shut off at a little lower pressure, (but it will tend to cycle more when the voltage is normal). 
     
    If excessive cycling does bother you, and you can't increase the set pressure due to occasional periods of low voltage, you can install a flow switch on the pump outlet.  This will then shut off the pump when it detects no flow regardless of the pressure, and will switch the pump on when it detect a falling pressure (such as when you open a tap).. But they are expensive (c. 2-2,500 bt) and can easily be damaged with voltage surges (I got through 3 of them in a year before I replaced them with a simple pressure switch.)  

    Thanks for the info Steve.

    My pulses , or cycling is probably a better word I’ve learnt, are nowhere near the frequency of Mike45’s and probably around 3 seconds on, 3 seconds off.

    I’ve decided not to play with the pressure switch and live with the cycling in fear of buggering something up !!
    Both my immediate neighbours have the same pump and i can hear a similar cycling occurring on some occasions , presumably when using the shower as it is a restriction.

    As I said in the OP I’m not sure that this wasn’t happening before when the pump was sitting on concrete, now it’s sitting on a steel frame ( with rubber feet ) and a tiled walkway and it does seem much louder, but i am obsessing about it now [emoji51].
    It’s in exactly the same position, albeit around 11” higher, and the pvc pipework is the same.
    So, maybe some rubber or felt material under the pump will dampen some of the sound and in time I’ll forget about it, I have noticed the plastic cover does make the pump noise increase significantly but don’t want to leave it uncovered.
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