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About roger
(Top Expert on this page)

Expertise
Any questions regarding pool,spa pumps and motors. Any pool and spa operations, problems, chemistry and maintenance. Filters, Heaters, Cleaners,Salt Water Systems.

Experience
Over 7 years as a field service technician in pools over 40 years as an electronic field service technician in process control and metrology (precision measurement). Having worked in depth with pool and spa leaks and solutions we are the experts. Years of rebuilding motors

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Perhaps one day pool and spa articles.

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Electronics technology

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You are here:  Experts > Home/Garden > Exterior Decorating > Swimming Pool & Spa Construction & Maintenance

SubjectDate AskedExpert

White fluffy threads in tile pool11/18/2009Manish J.Joshi
  Q: CHL 3.8ppm pH 7.3ppm TA 137ppm Cyanuric Acid 70ppm theese are the current levels in a 75m3 tiled ...
  A: The norms for the pool The total alkalinity to 80-120 PPM and the calcium hardness to 150-200 PPM ...
swimming pool ceilings11/17/2009Manish J.Joshi
  Q: wanted to know if putting up waterproof drywall to the ceiling of my indoor swimming pool would be a ...
  A: Any surface which does not absorb water can be used as a roof, But also check the material data ...
spa bubbles11/15/2009roger
  Q: i was wondering how my old spa had bubbles that came up from the floor but my new spa dosent?I ...
  A: OK thanks. Herein lies the problem, blower jets are a seperate plumbing system of jets dedicated ...
Making spa part of my pool11/12/2009roger
  Q: My heater recently broke and we never really used it much anyway. We are in the process of getting ...
  A: Is the spa physically part of the pool as in do they share a wall, there are pools out there that ...
Rusty Spa Heater Headers11/9/2009Manish J.Joshi
  Q: I'm told the reason the Plaster on my Spa peeled in thick flakes is the Headers on my heater are ...
  A: If the reason has come from professional I cannot comment But My observation is, the Check the pH ...
tiger flex pipe11/7/2009roger
  Q: inground pool gunite. some tiger flex pipe is being used along the curving points and down under the ...
  A: All we use on new pools is tigerflex also known as flexible PVC pipe, not sure what insects have to ...
DE Filter Problem11/7/2009roger
  Q: I Have a Purex SMBW 4800 DE Filter powered by a 1 1/2 HP Whisperflo That also ties in to a Purex ...
  A: Is there a check valve somewhere in the plumbing like the heater outlet. Here is what you can try. ...
Pool level11/6/2009Manish J.Joshi
  Q: We seem to have a problem with the water level in our free standing above ground pool. When we ...
  A: Sorry to counter question,Has the drop in level stopped ? If that the case then the leakage is above ...
blowing fuse11/5/2009roger
  Q: My tub is blowing the 20 amp slow burn fuse only on one side, if you dont connect the motor all ...
  A: The flow switch does not control flow only measures it. How did that short occur ? lawnmower? Get ...
water from outside pushing liner up10/31/2009Manish J.Joshi
  Q: i have a 17x31 x5 liner pool. it is at the bottom of a hill. when we have heavy rain the ground ...
  A: Lot of places the vinyl / liner pool is not the ideal solution for the swimming pool Now in your ...
Closing a fibreglass pool10/31/2009roger
  Q: We had a company close our fibre glass pool but I still worry if there is enough water in the pool. ...
  A: As long as you have a main drain with a functional hydrostatic valve your ok. But being a fiberglass ...
rust appearing in pool10/31/2009Manish J.Joshi
  Q: Our pool is just 5 yrs. old. It has pebble tec and a rust spot is developing. It appears to be ...
  A: First of all check the pH and other parameters Since If the parameters change can only induce this ...
vinly pool groundwater sump10/31/2009roger
  Q: Looks like I have to install some sort of groundwater removal system. After days of rain I observed ...
  A: If this is not a regular occurrence you could pump the water out between the liner and the wall as ...
5 port caretaker cleaning system10/29/2009Manish J.Joshi
  Q: My caretaker weems to be stuck with two of the zones open. It is not cycling past the two zones. I ...
  A: Sorry to counter question This is what I have understood That the multiport valve is not ...
drain at bottom of the pool10/28/2009Manish J.Joshi
  Q: we bought a home with a pool that is 20 plus years old. we have replaced the pump and the filter and ...
  A: In a good design 20-30% of water is sucked from the drain but In order to come to conclusion that ...
chlorinator cells10/25/2009roger
  Q: the LED indicator on my control panel suggests the chlorinator cell may needs replacing. it does ...
  A: And Tony did not tell me what system he is using so how could I answer properly. A bad cell will ...
chlorinator cells10/24/2009roger
  Q: the LED indicator on my control panel suggests the chlorinator cell may needs replacing. it does ...
  A: The only two salt water chlorinating systems I will even deal with or comment on is the Hayward Aqua ...
Pebbletec pool surface repair10/23/2009Manish J.Joshi
  Q: We have a 4 year old pool with a pebbletec surface. The pool has been maintained weekly for the ...
  A: The pebbletec surface can be repair again But you will have to see whether the areas adjoining it ...
pool filter10/22/2009roger
  Q: My pool filter is an older Pentair fns DE Filter. It still runs well and keeps my water clear, ...
  A: There are several O rings in the filter that may be bad. Have you cleaned and recharged. I would ...
POOL PUMP VACUUM LOSING SUCTION10/21/2009roger
  Q: I have a spec (porpoise)1.1kw pool pump.PROBLEM:When I operate the pump without the automatic pool ...
  A: This is normal but depending on the pool cleaner you have some come with an adjustable adapter to ...
Spa equipment10/18/2009roger
  Q: We have a gunite, in-ground spa and pool. We have a Raypak Heater which is approx 8 years old. ...
  A: Being an electronic technician now you want gas. On millivolt heaters we have a thermopile or ...
Inlet valve for pool10/17/2009roger
  Q: What does the inlet valve do on a pool?
  A: I am not sure what you mean by an inlet valve but to me an inlet valve is at the front of the pummp ...
Spa Filter10/17/2009Manish J.Joshi
  Q: I have an in ground concrete spa. I have Pentair equipment. My spa is approx 6 years old. I have am ...
  A: Every automation works on trigger i.e. Once the event has occurred in our case the time at 6-PM the ...
Spa Motor10/17/2009roger
  Q: I have an in ground concrete spa. I have Pentair equipment. My spa is approx 6 years old. I have am ...
  A: Has there been any power surges or storms lately. I know this is a pain but go through all the ...
indoor and in ground pool losing water.10/15/2009roger
  Q: Had diver come in and check pool for leaks. No leaks found., not even in the main drain. However, we ...
  A: The fact that you have a DE filter does not stop water leaking out of the backwash when running. ...
Pool Liner - fix problem?10/15/2009roger
  Q: I have a 20x40 inground pool - old liner is shot and now some erosion has occurred underneath the ...
  A: The first step is to completely drain the pool then cut the old liner out in pieces starting with ...
indoor and in ground pool losing water.10/14/2009roger
  Q: Had diver come in and check pool for leaks. No leaks found., not even in the main drain. However, we ...
  A: First of all remove the pipe or site glass on the sand filter and run. Common loss of water is ...
cool heat pump10/12/2009roger
  Q: I live in the U A E and I need to choose a cool heat pump so please there must be an equation how to ...
  A: Visit Hayward or Jandy web sites for calculators and choices or a heating cooling contractor L am ...
keep losing water level10/12/2009Manish J.Joshi
  Q: I work of the City of Douglas Aquatic Center, almost every day we lose about 8" of water in your ...
  A: First of all sorry for replying so late Can you do the following 1)Check drop in level of water ...
Pool Maintenance10/11/2009roger
  Q: I have an inground concrete pool with a sand filter. We recently upgraded the filter and the pump, ...
  A: You should have started the filter on backwash to clean the new sand first as it contains a dust ...
changed filter now no suction10/11/2009roger
  Q: I have taken over doing my moms pool sence my father past away. We have a Sta-Rite TX100. I fallowed ...
  A: How do you close the outlet can you send me a picture of this leaking part? If the water is not ...
spa jet issues10/10/2009Manish J.Joshi
  Q: I have a thermospa 1900D and can not get the side jets to blow. I opened both t-handle valves, ...
  A: First of sorry for the delay Well the case of the blocked lines or it could be the pump not upto the ...
Swimming Pool Questions10/9/2009roger
  Q: We have a 15000 gallon chlorine pool (fiberglass) Everytime we swim in it it gets cloudy. I added ...
  A: If your PH is low you definitely don't need acid. There are 3 major test readings you need on a ...
@nd question re: winterizing gunite spillowver spa10/8/2009Manish J.Joshi
  Q: but I definitely have to winterize the spa becasue it is attached to the inground pool and shares ...
  A: First and foremost all pools are designed for two conditions:- 1)Fully filled with water 2)Fully ...
winterizing a gunite pool w/gunite spillover spa10/6/2009Manish J.Joshi
  Q: we just moved into our home in Northern NJ and this is our first season with this pool. I am not ...
  A: Sorry to be delay in answering. Well draining or not depends on situation you are in For taking the ...
Mold under Above ground vinyl liner10/6/2009roger
  Q: We have an above ground pool- it was installed five years ago. This summer we wanted to get the ...
  A: What above ground has a main drain non I have ever seen are you sure you don't mean an onground ...
pool electrics10/6/2009roger
  Q: I am based in the UK but have a house and pool in Tobago, Caribbean. Over the past couple of years I ...
  A: If you don't have a GFCI breaker on all pool power lines you should and it should have tripped if ...
pool tile10/5/2009Manish J.Joshi
  Q: Is there a solution when one or two tiles pop off and they are on the bottom of the pool? Some magic ...
  A: Normally it happens in some pools one or more tile poping up The best remedy is to apply epoxy on ...
Pool walls bent in a little10/4/2009Manish J.Joshi
  Q: Last winter, the supports holding up the walls in my above ground pool started to bend in a little. ...
  A: All the pools are designed for full and empty condition. The wall of the pools are designed with ...
Stemmed freeze plugs10/3/2009roger
  Q: i was just wondering if you could direct me somewhere to buy stemmed freeze plugs to blow out my ...
  A: I might if I knew what they were. Perhaps you are referring to check valve plugs and have just given ...

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