Ok to mix trudesign and DZR?

[RJJ]

Hi. I am on a mission next week to replace all seacocks and through-hulls. Got the gunk, material for backing plates, read the manual and looking forward to it.

I wanted to do Trudesign all the way but the retailer is struggling for some reason to tell me what's available. So I don't have the items yet (have been trying to obtain a straight answer for three weeks) ?.

What if I used a DZR through-hull (readily available) which would enable me to nail 90 per cent of the work next week as planned...returning to finish off the task when I have the TD seacocks in hand? The only downside being I may have to trim the thread of the skin fitting after fitting rather than on the bench, which I think I can live with. If it can't handle my cutting tool then I haven't installed it right...right?

Most importantly, is there any drama mixing the plastic and the DZR components? Many thanks

 

[pvb]

No problem mixing DZR and plastic.

 

[Spirit (of Glenans)]

IMHO it would be a pointless excercise. The reason for replacing metal with plastic is to avoid failure through de-zincification.
If you use bronze skin fittings this will still occur.
If it were me, I would wait until the retailer had them in stock, or order them on line. AFAIK there are at least two online suppliers of Trudesign in the UK.

 

[Graham376]

IMHO it would be a pointless excercise. The reason for replacing metal with plastic is to avoid failure through de-zincification.
If you use bronze skin fittings this will still occur.
If it were me, I would wait until the retailer had them in stock, or order them on line. AFAIK there are at least two online suppliers of Trudesign in the UK.

+1

Try here, usually have everything in stock - LeeSan Marine Sanitation

 

[VicS]

IMHO it would be a pointless excercise. The reason for replacing metal with plastic is to avoid failure through de-zincification.
If you use bronze skin fittings this will still occur.
If it were me, I would wait until the retailer had them in stock, or order them on line. AFAIK there are at least two online suppliers of Trudesign in the UK.

Bronze does not de-zincify because it contains no zinc
DZR should not de-zincify. Thats is why it is called de-zincification resistant.

However, I agree with the suggestion to find a supplier with all the Tru Design items available

 

[Lucy52]

I would second LeeSan, they were helpfully when I used them.

 

[Mistroma]

Bronze does not de-zincify because it contains no zinc
DZR should not de-zincify. Thats is why it is called de-zincification resistant.

However, I agree with the suggestion to find a supplier with all the Tru Design items available

Fully agree Vic. It might be worth noting that you don't always know exactly what you are getting with skin-fittings and that would push me even more towards avoiding them if you are not 100% certain. Not much point having TruDesign valves connected to skin-fittings not guaranteed to be of the highest quality.

 

[BabaYaga]

One in-depth article on this subject came to the conclusion that the combination that you are considering (DZR through-hull and everything else plastic composite e.g. Trudesign) might be the optimum solution.
The reason given was that the metal through-hull would be more resistent to exterior impact, like objects in the water or ice.

 

[Stemar]

And, according to articles I've read, don't wire them to your anode. Under all normal circumstances, they'll look after themselves just fine without, but an inconspicuous fault in the anode circuitry can chew them up in short order.

 

[RJJ]

I would second LeeSan, they were helpfully when I used them.

To close this off, with thanks for the recommendation, I bought the lot from Leesan who were indeed very helpful.

For future reference, if you're planning to buy a bunch of TruDesign kit, don't be buying them in February as it's peak time! No reason at all I couldn't have done this in December.