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  1. M

    My Dolphin Active30 is a Lemon

    Again, not wanting to hijack this thread, but to clarify comments made in my last post. I ended up finding there are third party parts sources for Maytronics robots. There are part diagrams, exploded views and order availability of parts needed for the CC Plus at eztestpools. I was surprised to...
  2. M

    My Dolphin Active30 is a Lemon

    I am at the same point as you with my Maytronics CC Plus. I am one month out of warranty and it has a broken internal track guide. They won't sell me the part for self repair. I've been loosing over a month of every swim season shipping mine in for service since purchase. This is the second bad...
  3. M

    Frozen plaster

    Signature is wrong. Thanks for pointing that out. Thanks for the reassurance about the plaster.
  4. M

    Frozen plaster

    I'm posting this under equipment as it goes along with all the freezing issues we've encountered here in Texas. Although I was lucky enough to maintain power and pump operation throughout the freeze I ended up with a leak in one of the fittings at the pump input. I was running my pump at low...
  5. M

    Concrete Pool Slide

    Here's one brand of bar top epoxy: http://steebar.com/Supplies/Epoxy.html. I use another brand from a local commercial supplier. As I mentioned, this does not flake or chip as it wears. It stays smooth through my whole summer season. It just tends to get a little rough after winter but is still...
  6. M

    5 yr. cost estimate? and polaris vs. robot opinions?

    kirbinster - the polaris I'm referring to is a robotic cleaner. I'm hoping for the best of both worlds - the 10 years of durability and low power requirements of the robotic. There was already a post about the cleaner here: looking-for-robot-rec-s-for-fiberglass-got-the-polaris-9400-t40927.html...
  7. M

    5 yr. cost estimate? and polaris vs. robot opinions?

    I found a full breakdown diagram and orderable parts list for the 9300 by simply google searching. I expect the same will be available for the 9400 shortly. From the breakdown diagram it looks very modular and (relatively) simple to service.
  8. M

    Concrete Pool Slide

    I have a plaster covered concrete slide. After a modest rash on the first run down the slide I found a solution. I use bar counter epoxy. I would say it's pretty durable since a single coat lasts through the whole season. I just top it with a thin coat at the beginning of each season using a...
  9. M

    5 yr. cost estimate? and polaris vs. robot opinions?

    I had a Dolphin Dynamic with remote. Still have it with one bad motor if anyone wants to buy it :wink: Although reliable over that time there were two really annoying issues: removing it from the pool and cleaning the bag. To remove it from the pool you drag it to the side then flip it over and...
  10. M

    Polaris Robotic - Hidden Mystery Warranty

    After reading some posts on the Polaris 9400 I am now considering it to replace my 6 year old Dolphin Dynamic which just bit the dust. But, trying to find out warranty information is surprisingly difficult. After much digging around the web site I finally found it indicates a 2 year limited...
  11. M

    5 yr. cost estimate? and polaris vs. robot opinions?

    Dianne, My robot died after 6 years of reliable use. So, I'm now in the market trying to make a decision on a replacement. I wanted to share another consideration which hasn't been covered above - electricity. I don't know if you have a two speed pump, but if you do you'll need to run it at...
  12. M

    Copper v Cupro-nickel heat exchangers

    Hmmm... Flame, metal and water. There is something in the middle doing the conducting? Kind of important? Agreed.
  13. M

    Copper v Cupro-nickel heat exchangers

    Why? Thermal conductivity: Air 0.025 Aluminum 220 Titanium 7.4-22.0 (Depending on alloy and temp) Usually roughly equivalent to Stainless Steel. Steel 46 Stainless Steel 15 Copper 401 Although Titanium may have better longevity in a highly corrosive environment, there is a price to be paid in...
  14. M

    dolphin pool robot

    If you want a dolphin and are worried about reliability then just pick it up at Costco where you've got a great return policy. I've had mine for over two years. It works. It cleans effectively. As long as you don't have it in wall climbing mode it can clean the pool relatively quickly. If you do...
  15. M

    Excavator not digging steps is this right???

    I seem to remember a post about using 'extra' gunite on steps. It was a link that showed that gunite failure was largely caused by moving extra shot gunite, after it had been slightly set, to form steps and seats. I couldn't find the post when I searched.
  16. M

    patio furniture

    I wait until the end of the summer to buy new patio furniture. Last year I bought top end Home Depot (yes, as top end as they get :-)) at 75% off online. It was late August or Early September. I just kept an eye on their web site every few days knowing a good sale would show up eventually.
  17. M

    My new pool build

    You probably already read this thread: http://www.troublefreepool.com/viewtopi ... highlight= I'm a big fan of robotic cleaners. I'm an engineer (cheap) as well. I run my circulation pump on low speed (power) and as minimal time as possible. The robot does an excellent job supplementing my sand...
  18. M

    Landmark's pool build

    What are the depths at the different areas of the pool? I would expect the shallow would be adjacent to the beach entry, but I notice the steps are on the other side.
  19. M

    Re-plaster pool

    Need to have a pool re-plastered and would appreciate some insight. * A local (Austin, TX) plaster contractor raised his bid 20% from last year. Have energy costs affected materials to this degree? * Another contractor submitted a bid in which he plans to only pressure wash the existing...
  20. M

    Very Interesting Member Issue

    Is the guy taking any perscription meds? There are numerous medications which may superfically seem to be unrelated, such as some antibiotics, but which can cause hypersensitvity to Cl.
  21. M

    Insufficent watefall pump size !!! What size should i use

    This is an old thread, but I'll add my two cents in case it helps anyone out in the future. I have a waterfall + slide which I'm supporting with an isolated loop and a 0.33hp (low speed of 2 speed) pump. I had the stone masons take out a level and place it across the top surface of each...
  22. M

    Building new pool - Please comment on equipment

    >Pipe: 2” PVC >Skimmers: 2 >Returns: 2 Check the placement of your skimmers in the design to ensure they're down-wind of your typical wind direction. Keep head pressure low and save electricity! -get the builder to plumb the skimmers on isolated 2" pipes all the way back to the pump...
  23. M

    has anyone used "POOLSKIM"?

    Based on a early recommendation on this thread I bought the Pool Devil Pro. IMHO it was a complete waste of money. It is poorly designed and made of cheap quality components. It was ineffective as almost everything bypassed the bag since the inlet was so small compared to the wash area of the...
  24. M

    Electricity usage

    My pool is not big. It's only about 13.5K gallons. Point taken about the robot. I use it in peak season twice a week. Once a month in the coldest of the Texas winter (not too cold). It does a really good job of keeping the organic material load off the sand filter. So, I don't have to worry...
  25. M

    Electricity usage

    Don't forget the impact of the cleaner! I was frugal-minded (cheap :-D ) when I designed my pool. I oversized the pipes to minimize flow loss. I used an oversized sand filter. My pump is two-speed and runs on low speed (0.33hp==245Watts) exclusively. The filter pressure is always less than 2...
  26. M

    Installing pool water heat exchanger in HVAC

    I was thinking along a similar line. I have a pool waterfall which I'll use in the warmer months as the return to get the evaporative chilling effect so I don't over-heat my pool (hopefully).
  27. M

    Installing pool water heat exchanger in HVAC

    Ohm Boy, yes, thanks for pointing out the condensor is the side to tap :shock: Thunder, keep in mind that the refrigerant at the condensor is approaching 200 degrees F. It's after it has had some of the heat pulled out and pressure dropped that it is cool. Even if your pool is already over 80...
  28. M

    Installing pool water heat exchanger in HVAC

    Dave, I should have been clearer. My thought is to use a refrigerant to water heat exchanger. There is an example here: http://www.packless.com/heat%20exchrs/heatexch.html for a heat exchanger or simply use a chiller/evaporator coil setup like these...
  29. M

    Installing pool water heat exchanger in HVAC

    Anyone installed a pool water heat exchanger in line with their HVAC refrigerant condensor? There is a company on the east coast that does this and I'm curious as to the experience of anyone that has it installed. I'm planning to install a heat exchanger in my system which is right beside my...