Jacuzzi bath i bought a jaccuzzi bath on the internet when fitted it has leaked around some of the jets, and the pump, can the jets be tightened, my plumber sems to think he can sort out the pump

The suction cover will come off the wall fitting either by removing the screw(s) or by unthreading counter clockwise.
Once the cover is removed you can then access the wall fitting which sounds to me as if it may be broken. If you remove the wall fitting you need to put a small bead of 100% RTF silicone around the lip of the wall fitting before you thread it back into the fitting behind the tub.
Once you tighten that wall fitting up you can clean up any excess silicone mess with denatured alcohol.

Rod
U S Parts Center

In order to properly seal the jet in place with silicone you must remove the wall fitting from the inside of the tub. The wall fitting is threaded into the jet body from the inside of the tub.
Once the wall fitting has been removed you can put a small bead of silicone around the underside of the flange and thread it back into the jet body. Clean up the excess silicone after it squishes out with DeNatured Alcohol.
If you plan on just putting a bead of silicone around the outside edge of the jet body behind the tub, do not waste the silicone or your time as it will not solve the leak in the tub.

US Parts Center

The workings of a bath jet...From the inside of the Bath there is a wall fitting that threads from the inside of the tub into the jet body located on the outside wall of the tub.
If the jet is leaking at this point behind the tub then you should take the wall fitting out of the tub and put a small bead of 100% RTV silicone around the flange of the wall fitting and reinstall it.
If however, the leak is from the PVC piping going into the jet then you will need to replace the jet.

Rod
US Parts Center
888-521-6183

Jacuzzi Cetra Comfort Bath home page:

http://www.jacuzzi.com/baths/options/models/cetra

Installation and Operating Instructions:

http://www.jacuzzi.com/admin/files/files/4cfd8269-e7b0-4286-9908-7b9743.pdf

For replacement parts your best bet is to you use the on-line dealer locator:

http://www.jacuzzi.com/baths/pages/dealer-locator

or you can shop on-line from one of their authorized retailers; however did not see any of the parts you are looking for at the sites I checked:

http://www.jacuzzi.com/baths/pages/buy-online

You can't be serious? Get yourself down to Loews, Home Depot or Menards and get yourself a seat brother! It's not rocket science or that only Jacuzzi seats fit fit Jacuzzi toilets lets get real, comon lets get er done PAL.

if the tub is leaking from a jet, you have to get to it to remove it, put a bead of silicone around the wall fitting and reinstall it. no other way.

Sounds like a bad heating element. This is located in a stainless steel tube under or around the main control box behind the cover around the tub. It is not hard to replace but should be done by a pro. The part is avaliable online.

sounds like the rubber seals are going bad, does it recomend to run cascade thru the jets? this might be harmful to the gaskets and the pump, you maight want to disconnect the hose and flush out the tubes going around the tub, but I would call jacuzzi and ask them if this is good to run thru there, thye might be able to help you with the gaskets, questions over the phone do not cost you, call them, ask for repairs section good luck

Check to see if there is an open valve where the water exits the tub. If there is a valve, shut it and your problem should be solved. good luck

you need to pull the jet body out and then put some 100% RTV silicone around the jet body and the inside of the wall fitting. Once the silicone is in place re-assemble the jet. that will solve the leak unless there is a broken piece on the jet body or the lip of the wall fitting.