Cliffy Posted August 21, 2014 Share Posted August 21, 2014 The water pump on our AT Tracker is playing up it has a very slight leak somewhere out of sight around the back so it is sucking in air. When I get home I will take it out and if necessary strip it down. The pump is a Posiflo 3000, looking on the internet the Sureflo pumps look very similar and they seem to be one and the same, has Posiflo been superseded by Sureflo or are they completely different. If I need to replace the leaking part of the pump end should I buy the whole pump body or replace the whole pump motor included. If I buy a new pump should I buy a Posiflo (if available) or should I fit a Sureflo which seem to be more readily available? Link to comment Share on other sites More sharing options...
Brambles Posted August 22, 2014 Share Posted August 22, 2014 Hi Cliffy, I would imagine it is a lot cheaper just to replace any faulty parts and not the whole unit. Unless the rst of the pump, e.h the motor, is well worn and looks to be on it's last legs I would not bother changing the whole pump. Wait until you have it stripped and see what is needed and take it from there. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted August 22, 2014 Share Posted August 22, 2014 SHURflo pumps are manufactured in the USA, whereas “Posiflo” pumps come from a UK company called Leisure Accessories Ltd based in Norwich. Details of the latter company are given here http://www.companies-uk.co.uk/leisure-accessories-limited-01300760 and, although Posiflo water pumps still seem to be being marketed, it appears that Leisure Accessories Ltd may have ceased trading some while ago. As SHURflo highlights here http://www.shurflo-original.com/ their water-pump designs have been widely copied and the Posiflo pumps are/were SHURflo ‘clones’. It appears from this webpage http://www.marcleleisure.co.uk/store/pumps-pump-spares-c-23_65.html that many spare parts are interchangeable between SHURflo and Posiflo pumps, so (if you can identify what’s causing the leak) you may be able to effect a repair. If you do buy a new pump it would be sensible to opt for a SHURflo one. You should be able to source an equivalent to your Posiflo pump for under £60 and a new pump may a better long-term investment as your present unit must be getting on in years. Link to comment Share on other sites More sharing options...
Bulletguy Posted August 22, 2014 Share Posted August 22, 2014 Cliffy - 2014-08-21 9:39 PM If I buy a new pump should I buy a Posiflo (if available) or should I fit a Sureflo which seem to be more readily available? Depends if you want to pay more......or less? I've just replaced my pump, a Shurflo Trailking 20psi for £52 inc p&p. It's the identical 'spec' pump as fitted from new and my van is now 14 years old. Locally i was quoted £85 for the same 'spec' Posiflo so it was a total no brainer. This is the place i bought from which isn't so far from you and the counter price is £47; http://www.thecaravanshop.co.uk/waterpumps/accessories/shurflo-water-pumps/shurflo-7litre-trailking-20psi/prod_25.html Bought from the guy before as he is one of those rare Dealers retailing accessories at sensible prices. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted August 23, 2014 Share Posted August 23, 2014 There are on-line adverts for Posiflo pumps at prices in the £50-£60 range. For example http://www.olearymotorhomes.co.uk/posiflo-pump-20psi-1103-p.asp I suspect these are old stock, as the manufacturer of Posiflo pumps seems to have gone bust some years ago and there’s a statement on the following webpage http://www.motorcaravanning.co.uk/shopuk/water_products.htm from a company that used to sell Posiflo pumps that they are no longer available. Given the situation with the manufactuer of Posiflo pumps and the fact that SHURflo pumps can be obtained easily at a good price (though it’s certainly true that SHURflo pumps asking prices vary radically) the correct choice seems plain. Link to comment Share on other sites More sharing options...
Bulletguy Posted August 23, 2014 Share Posted August 23, 2014 Derek Uzzell - 2014-08-23 9:34 AM There are on-line adverts for Posiflo pumps at prices in the £50-£60 range. For example http://www.olearymotorhomes.co.uk/posiflo-pump-20psi-1103-p.asp I suspect these are old stock, as the manufacturer of Posiflo pumps seems to have gone bust some years ago and there’s a statement on the following webpage http://www.motorcaravanning.co.uk/shopuk/water_products.htm That's the same Posiflo pump a local Dealer quoted me 85 quid for! Glad i bought a Shurflo now.......and from the supplier i used too. Sends all his accessories out via 48hr delivery so i still got it the following day. A saving of 33 quid can't be bad. :D Link to comment Share on other sites More sharing options...
Cliffy Posted August 27, 2014 Author Share Posted August 27, 2014 I removed the water pump yesterday. The leak was from a fitting the problem with the pump was the pump inlet strainer was almost totally blocked with a slimy grunge. I did clean it out at the start of the year but I recently cleaned the system out by putting a litre of vinegar in the water tank, pumping it through the system then letting it stand for a couple of days before pumping out and flushing with clean water. On reflection this was not a good idea as any crud that was released from the tank was getting pumped through the strainer. I have cleaned the strainer and flushed the tank by filling and draining down. After running the taps for a few minutes I checked the strainer and it was showing signs of slimy stuff coming up still so I will keep checking it. I may have to take the tank off and give it a steam clean out. :-( :-( Can anyone tell me if there is a suction strainer inside the tank, it is an Autotrail Tracker 2004 with the fresh water tank mounted underneath the floor on top of the Waste water tank. I was going to back flush the inlet pipe in to the tank but there is a non-return valve in the line and I was also worried that I might blow any strainer off the end of the suction pipe. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted August 28, 2014 Share Posted August 28, 2014 If there were a strainer at the end of the pick-up hose in the water-tank, it’s near certain that the “slimy grunge” would have clogged the strainer and the stuff would not have reached the water-pump’s filter. If you are going to blow out the hose from the non-return valve back to the pick-up point in the tank I shouldn’t worry about any strainer being on the end of the hose. In the unlikely case that there were a strainer it’s plain that it’s not earning it’s keep. So, even if it got blown off, it would be no loss. Link to comment Share on other sites More sharing options...
AlanYoung Posted August 31, 2014 Share Posted August 31, 2014 Returned to m/h (Swift Bolero) to find pump (Flojet) running constantly, school boy error forgot to ensure that fresh water tank had enough water in it. This caused an airlock that took some considerable unpleasant sucking of the shower hose to clear it. I had previously had all sorts of thoughts about removing and repairing or replacing the pump diaphragm or the supply pipes, none of which were very welcome. So please ensure that you keep well topped up as lack of water even enough to flush the loo becomes an issue. I realise that does not fix other problems experienced with pumps but it is easy to go down some of the necessary routes expending time and money to correct what might require only a simple fix. Link to comment Share on other sites More sharing options...
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