Data logger

[Kent Swafford]

No. Those systems were before the days of undercovers. Undercovers  
are a _big_ improvement.

That I can think of, I have single-tank systems with undercovers on  
an O and an A; they work fine, but with the larger pianos, I go with  
dual-tanks.

Kent



On Apr 27, 2007, at 4:48 PM, Barbara Richmond wrote:

> Thanks, Kent.  Did the old single tank systems have undercovers, also?
>
> Barbara Richmond
>
>
> ----- Original Message ----- From: "Kent Swafford"  
> <kswafford at gmail.com>
> To: "Pianotech List" <pianotech at ptg.org>
> Sent: Friday, April 27, 2007 4:17 PM
> Subject: Re: Data logger
>
>
>> I was out tuning today and it suddenly hit me that I hadn't  
>> mentioned  the bottom covers. Yes, these are 8 B's, all with  
>> undercovers, and  all with 2-tank systems.
>> With no systems these pianos changed 45 cents with the changes of   
>> season. With old single tank systems they still changed more than  
>> 20  cents. Now with 2-tank systems and undercovers, one changes  
>> maybe 6  cents but that prof isn't so good about watering. The  
>> rest stay at  pitch.
>> I agree about the top covers. Bottom covers should be much higher   
>> priority than string covers. I have a D with a 2 tank system, and  
>> top  and bottom covers. (It is in a challenging environment with  
>> heat/AC  vents blowing across the top of the piano.) This piano,  
>> even with air  blowing across it all the time, stays at pitch  
>> within a couple cents.  I credit the string cover in this  
>> particular case.
>> Dean, as for whether these are overkill, I don't think they are.  
>> If  for no other reason, I like the 2 tank systems because they  
>> hold  twice the water, and might not have to be watered as often  
>> as single  tank systems, which is an important consideration at  
>> the university.
>> Kent
>> On Apr 27, 2007, at 1:42 PM, Don wrote:
>>> Hi Barbara,
>>>
>>> The undercover works 24/7; the top cover works when the lid is  
>>> not  fully
>>> closed. Would you rather have something that works always--or   
>>> something
>>> that works part time--and when it is *most* needed (i.e. at a   
>>> concert) is
>>> possible removed? I'm all for string covers--just that it is  
>>> less  important
>>> than the bottom cover.
>>>
>>> At 01:39 PM 4/27/2007 -0500, you wrote:
>>>>   Kent,   Would those Bs with two tanks have undercovers  also? 
>>>> He  thought
>>> that >given a choice, he'd rather go with a string cover, rather   
>>> than and
>>> undercover.  >Any comments?
>>>
>>>> Thanks,   Barbara Richmond
>>> Regards,
>>> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
>>> Non calor sed umor est qui nobis incommodat
>>>
>>> mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/
>>>
>>> 3004 Grant Rd. REGINA, SK, S4S 5G7
>>> 306-539-0716 or 1-888-29t-uner
>>