Granlund Woodwind Repair
serial number list for Selmer (Paris) clarinets
To grasp why a partial clog behaves as it does, one must first understand the simple physics of a toilet flush. A toilet operates on gravity and siphonic action. When you flush, water rushes from the tank into the bowl, raising the water level and forcing air out of the trapway—the curved, internal channel at the bottom of the bowl. This creates a siphon, a vacuum-like effect that pulls the bowl’s contents over the P-trap and down the drainpipe into the soil stack. A fully functional flush is swift and complete, ending with a characteristic gurgle as the siphon breaks and the bowl refills with clean water.
If plunging fails, a toilet auger (also called a closet auger) is the next step. This specialized snake has a protective rubber sleeve to prevent scratching the porcelain. The auger’s cable is cranked down through the toilet’s trapway, physically breaking up or retrieving the clog. Chemical drain cleaners are generally discouraged for toilets; their harsh reactions generate heat that can crack the porcelain, and they do little against solid obstructions. For stubborn partial clogs, a mixture of hot (not boiling) water and dish soap can help lubricate the pipe and soften the clog before plunging. In extreme cases, removing the toilet to access the drain directly may be necessary, but this is typically a task for a professional. toilet partially clogged
Ultimately, the best cure for a partial clog is prevention. Most household clogs stem from what is flushed. Toilets are designed to handle human waste and rapid-dissolving toilet paper only. Items marketed as “flushable”—wipes, cleaning cloths, cat litter, feminine hygiene products, cotton swabs, and dental floss—do not break down in water and are leading causes of both partial and complete clogs, not to mention municipal sewer problems. Educating all household members, especially children, about what belongs in the toilet is the simplest and most effective plumbing maintenance. To grasp why a partial clog behaves as
| serial number | year of manufacture |
| no records | 1885 to 1926 |
#400 | 1/1/27 |
#3070 | 1/1/29 |
#9999 | 1/1/31 |
| L Series: | |
L1000 | 12/1/31 |
L2100 | 1932 |
L3250 | 1933 |
L4300 | 1934 |
L5500 | 1935 |
L6600 | 1936 |
L7750 | 1937 |
L8800 | 1938 |
L9900 | 1939 |
| M Series: | |
M1000 | 2/1/39 |
M2400 | 1940 |
| During the WWII years, manufacture was very sketchy, as are the records. The K series was produced then. | |
M3400 | 1944 |
M6000 | 1945 |
M8000 | 1946 |
| N Series: | |
N100 | 10/1/46 |
N1000 | 2/1/47 |
N2800 | 1948 |
N4900 | 1949 |
N6600 | 1950 |
N8100 | 1951 |
| P Series: | |
P1200 | 1952 |
P4200 | 1953 |
P7400 | 1954 |
| Q Series: | |
Q1100 | 1955 |
Q4350 | 1956 |
Q7290 | 1957 |
| R Series: | |
R1200 | 1958 |
R6100 | 1959 |
| S Series: | |
S1150 | 1960 |
S4160 | 1961 |
S7390 | 1962 |
| T Series: | |
T1400 | 1963 |
T5800 | 1964 |
| U Series: | |
U1100 | 1965 |
U5700 | 1966 |
| V Series: | |
V1000 | 1967 |
V4800 | 1968 |
V7900 | 1969 |
| W Series: | |
W1700 | 1970 |
W5900 | 1971 |
| X Series: | |
X1500 | 1972 |
X6400 | 1973 |
| Y Series: | |
Y1200 | 1974 |
Y6300 | 1975 |
| Z Series: | |
Z1100 | 1976 |
Z5200 | 1977 |
| A Series: | |
A1000 | 1978 |
| B Series: | 1980 & 1981 |
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updated 4/24/22