Simon Rose

Yes, the pump and heater/ control unit ( a Gecko SSPA) is on rubber mounts. I think its either the pipes of the water flowing thats causing the vibration. I know the bottom has rubber mounts but I wasn't talking about the bottom of the pump. The question I'm asking is if the pump/motor housing is contacting the walls of the equipment compartment because that will cause the issue you speak of. Sometimes the pumps are pushed back in the equipment compartment and the sides/top of the pump contact the walls of the compartment if they're not careful when the make the spa. Sorry, you are right, I didn't answer the question. No, the pump is not in contact with the shell or frame etc. However I think that the vibration from the pump is being transmitted through the hard pipes and causing them to resonate somewhere else in the spa. It might be that the hard pipes are in contact elsewhere, but I can't get at the at the moment due to all the foam or insulation etc.

It's not feasible to add a circ pump for the heat cycle without some major surgery and it would invalidate the warranty. Afterall, this is a NEW spa so I don't see why I should have to re-engineer it internally. The higher spec spas do have a small circ pump for heating, but not on the D1 @home range. Simon Are you sure the pump/motor housing isn't making contact with the equipment compartment? Yes, the pump and heater/ control unit ( a Gecko SSPA) is on rubber mounts. I think its either the pipes of the water flowing thats causing the vibration.

It's not feasible to add a circ pump for the heat cycle without some major surgery and it would invalidate the warranty. Afterall, this is a NEW spa so I don't see why I should have to re-engineer it internally. The higher spec spas do have a small circ pump for heating, but not on the D1 @home range. Simon

It's not feasible to add a circ pump for the heat cycle without some major surgery and it would invalidate the warranty. Afterall, this is a NEW spa so I don't see why I should have to re-engineer it internally. The higher spec spas do have a small circ pump for heating, but not on the D1 @home range. Simon

I've had a good chat with a different D1 dealer and they have been more useful to me. They too think the problem is with my base and not the spa so I have ordered a rubber sound absorbing mat from Noise Stop Systems; http://www.noisestopsystems.co.uk/soundpro...n_mat/index.asp They have also suggested digging the hardcore back where it meets the garage wall and their fence and replacing it with sand or even a rubber infill material to reduce the vibration transmission further. I'll lay a layer of sand on top of the hardcore pad before I lay the mat to ensure its totally flat - they wondered if the pad had a raised area which wasn't supporting the tub evenly. Thanks to your all for your ideas and reassurance that all tubs should not be as noisy as ours. I'll let you know how it progresses. Simon

This is a thought as there is an 8" gap between the two adjacent garage walls. I'l goign to try blocking it up and see, but I still feel the spa is making too much noise. Simon

Yes, this is easy to control, but the heater is thermostatic and thus we have no control over it. The dealer sugegsted turningthe temp down overnight, but this means we can't use it in the morning before work as it would be cold.

Which 'series' is this part of? It seems the higher spec ones have a different circulation pump which is much quieter. Ours uses the main pump during the heat cycle rather than the small pumps which run and heat continuously on the higher spec spas. Ours is one of the @home range.

I've checked the pump as best as possible and it is now correctly seated on its rubber mount. One issue maybe there is solid pipe between the pump, heater and spa unit so any vibration from one item will be transmitted to another. I could replace this all with rubber sections to isolate it but I am sure it would invalidate my warranty. I'm wondering if my base isn't as flat as I first thought and thus the spa isn't fully contacting the floor properly. I'm thinking of a layer of sand and then a rubber mat to level and soften the vibrations. I'll let you know how I get on but still keep the ideas coming in the mean time. I don't think I'm going to get much more sense out of my dealer - they are not very technical. Simon

Hi, We've got a bit of dilemma. Our neighbours are complaining about the noise coming from the spa when its doing its heating cycle. Its a D1 Cove spa with Ozone. Unlike the higher spec ones, the heat circulation pump is the same one used for the slow speed when actually using the spa (1.5hp) rather than the little pump used for the ozone circulation. The spa is on a bed of about 3 tonnes of compacted hardcore and is in the corner of the garden surrounded by the back wall of our garage and the neighbours fence. We don't hear the noise at all, but having visited their house it is certainly much noisier than in ours. Short of housing the tub in a large cabin (which defeats the object of it being outdoors) we need to isolate it from the ground to reduce any mechanical vibrations through the floor/ foundations. Has anyone any experience of this. I have spoken to a number of industrial rubber matting but non of them have tested their products in this situation so not sure which to buy (most are quite expensive too, though cheaper than a shed). I've spend a lot of time isolating the pump and control gear inside the spa (the installers didn't remove the shipping bolts!) but its still pretty bad. We want to use the spa, but like the neighbours and don't want to upset the harmony of the village. Help!?!? Simon Rose

I have now spoken to the dealer and he is happy with my idea. However it must be stressed that gravel alone is not acceptable - it shifts about too much. The gravel is purely decorative. You must put a decent base of compacted hard-core down first which will prevent it all sinking or shifting about. Essentially the gravel is there as a finisher, not to support it. Simon

Hi, We're about to by a D1 spa and are currently looking at the landscaping requirements for siting it. Initially we'd considered extending out block paving patio to suit but with time and money against us this is not looking feasible. My friend has an Agean Spa which is sited on hardcore then gravel and is most satisfactory. I have spoken to Arctic Spas at a show at the weekend and they say compacted gravel is a popular choice too. They said that I need to check the warranty terms with D1 as some may have exclusions for non contiguous substrates such as gravel etc. I am going to talk to D1 & my dealer but am interested in hearing opinions from the learned masses too. The thought is to lift an area of the existing block paving and dig out area of lawn. Fill with compacted hardcore then layer of gravel on top. There would be a retaining wall around to prevent the lot from shifting etc. Thoughts? Simon