" However, you need to add in shipping and TVA, and possibly duty."
We ordered a pool alarm from the States last year - had to pay duty. Even with shipping and duty we ended up spending about a third of the price of the cheapest alarm in France.
"Also you have no effective guarantee, and servicing could be tricky"
The alarm arrived from the supplier - didn't work - we telephoned the manufacturer (in the States) who got us to activate it over the phone, said that the supplier shouldn't have sent us that one & promised to ship a replacement to arrive within 36 hours. The replacement arrived the next day(I don't know how they do it. It would have been weeks from a point in France). Works perfectly. No duty the second time.
Conclusion: great alarm, brilliant after-sales service, extremely cheap.
BYW this alarm is now sold with French specifications.
'Automatic' pool cleaners.
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- Posts: 63
- Joined: Sat Dec 11, 2004 2:39 pm
We found the polaris to be excellent and very efficient. However, to comply with the new pool security laws we have opted for a security roller cover - disadvantage - the polaris does not work so efficiently while the cover is on so we tend to leave it in and it works during the day when the cover is off. Not ideal if it is considered a hazard.
Has anyone any suggestions how to get round this? Manual cleaning is not an option due to a back injury.
Has anyone any suggestions how to get round this? Manual cleaning is not an option due to a back injury.
There are several floculant products on the market that will cause small particles to gel together, thus easier removed by the filter - silica or sand filters that is.Alan Knighting wrote:Jayjan,
Whilst on the face of it backwashing to waste sounds like an efficient way of keeping a pool clean it is not the answer on a daily basis. Apart from the obvious problem of excessive use of water (that is a huge problem in times of water shortage and hose pipe and pool topping up bans, as is now the case where I live) there is also the question of the efficiency of your filter.
At first, a high-rate sand filter with clean sand will remove only larger particles (between 12 and 15 microns in size). As the dirt builds up in the sand, the filter will remove finer and finer particles, eventually down to submicron size. In other words the filter becomes more and more efficient, up to a point. That point is reached when the pressure guage shows an increase of 5 to 8 psi over the pressure when the filter starts up after being cleaned. Backwashing too frequently does not allow the filter to do the maximum cleaning job and you are not improving filtration by backwashing before the appropriate pressure rise is registered.
Regards
Alan
Check out bioguard.co.uk for lots of tips, advice and trouble shooting on pools and spas.
Regards
Calvados
Hi
just a couple of points :
The sand does eventually wear out ! The sharp crystalline form eventually becomes rounded and the filter loses some efficiency. It needs to be replaced every 5 - 10 years. It is a relatively easy and cheap job.
Scale in the water accelerates the drop off in performance.
I've got some info & costs here.
Peter
just a couple of points :
The sand does eventually wear out ! The sharp crystalline form eventually becomes rounded and the filter loses some efficiency. It needs to be replaced every 5 - 10 years. It is a relatively easy and cheap job.
Scale in the water accelerates the drop off in performance.
I've got some info & costs here.
Peter
- Alan Knighting
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- Location: Monflanquin, Lot-et-Garonne, France